/* ==========================================================================
   GLOBAL STYLES - Yi-Links Cable Manufacturing
   全站通用样式文件 - 包含基础变量、通用组件、头部底部样式
   ========================================================================== */

/* ==========================================================================
   CSS VARIABLES & DESIGN TOKENS
   ========================================================================== */

:root {
    /* Primary Brand Colors */
    --primary-blue: #0066FF;
    --primary-blue-dark: #0052CC;
    --primary-blue-light: #3385FF;
    --primary-blue-lighter: #66B2FF;
    
    /* Secondary Colors */
    --secondary-green: #00C851;
    --secondary-orange: #FF6B35;
    --secondary-purple: #6C5CE7;
    --secondary-yellow: #FFD700;
    --secondary-red: #FF4757;
    
    /* Neutral Grays */
    --neutral-900: #0F172A;
    --neutral-800: #1E293B;
    --neutral-700: #334155;
    --neutral-600: #475569;
    --neutral-500: #64748B;
    --neutral-400: #94A3B8;
    --neutral-300: #CBD5E1;
    --neutral-200: #E2E8F0;
    --neutral-100: #F1F5F9;
    --neutral-50: #F8FAFC;
    --white: #FFFFFF;
    --black: #000000;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary-green) 0%, #00A86B 100%);
    --gradient-warning: linear-gradient(135deg, var(--secondary-orange) 0%, var(--secondary-yellow) 100%);
    --gradient-purple: linear-gradient(135deg, var(--secondary-purple) 0%, #5F3DC4 100%);
    --gradient-hero: linear-gradient(135deg, var(--neutral-900) 0%, var(--neutral-800) 50%, var(--primary-blue-dark) 100%);
    --gradient-text: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-purple) 100%);
    --gradient-light: linear-gradient(135deg, var(--neutral-50) 0%, var(--neutral-100) 100%);
    
    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    
    /* Border Radius */
    --radius-none: 0;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-3xl: 32px;
    --radius-full: 9999px;
    
    /* Spacing Scale */
    --space-0: 0;
    --space-px: 1px;
    --space-xs: 0.5rem;     /* 8px */
    --space-sm: 1rem;       /* 16px */
    --space-md: 1.5rem;     /* 24px */
    --space-lg: 2rem;       /* 32px */
    --space-xl: 3rem;       /* 48px */
    --space-2xl: 4rem;      /* 64px */
    --space-3xl: 6rem;      /* 96px */
    --space-4xl: 8rem;      /* 128px */
    --space-5xl: 12rem;     /* 192px */
    
    /* Typography */
    --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-family-mono: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    
    --font-size-xs: 0.75rem;     /* 12px */
    --font-size-sm: 0.875rem;    /* 14px */
    --font-size-base: 1rem;      /* 16px */
    --font-size-lg: 1.125rem;    /* 18px */
    --font-size-xl: 1.25rem;     /* 20px */
    --font-size-2xl: 1.5rem;     /* 24px */
    --font-size-3xl: 2rem;       /* 32px */
    --font-size-4xl: 2.5rem;     /* 40px */
    --font-size-5xl: 3rem;       /* 48px */
    --font-size-6xl: 4rem;       /* 64px */
    
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;
    
    --line-height-tight: 1.25;
    --line-height-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;
    --line-height-loose: 2;
    
    --letter-spacing-tight: -0.025em;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.025em;
    --letter-spacing-wider: 0.05em;
    --letter-spacing-widest: 0.1em;
    
    /* Transitions */
    --transition-none: none;
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
    --transition-slower: 500ms ease-in-out;
    
    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
    
    /* Breakpoints (for reference in media queries) */
    --breakpoint-sm: 576px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 992px;
    --breakpoint-xl: 1200px;
    --breakpoint-2xl: 1400px;
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */

/* Modern CSS Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    line-height: var(--line-height-normal);
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--neutral-700);
    background-color: var(--white);
    overflow-x: hidden;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Remove default margins and improve consistency */
h1, h2, h3, h4, h5, h6,
p, blockquote, pre,
ul, ol, dl, dd,
figure, hr,
fieldset, legend {
    margin: 0;
    padding: 0;
}

/* Remove list styles on ul, ol elements with a list role */
ul[role='list'],
ol[role='list'] {
    list-style: none;
}

/* Set core root defaults */
html:focus-within {
    scroll-behavior: smooth;
}

/* Set core body defaults */
body {
    text-rendering: optimizeSpeed;
}

/* A elements that don't have a class get default styles */
a:not([class]) {
    text-decoration-skip-ink: auto;
}

/* Make images easier to work with */
img,
picture,
svg {
    max-width: 100%;
    display: block;
}

/* Inherit fonts for inputs and buttons */
input,
button,
textarea,
select {
    font: inherit;
    color: inherit;
}

/* Remove all animations, transitions and smooth scroll for people that prefer not to see them */
@media (prefers-reduced-motion: reduce) {
    html:focus-within {
        scroll-behavior: auto;
    }
    
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--neutral-900);
    letter-spacing: var(--letter-spacing-tight);
}

h1 {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-extrabold);
}

h2 {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
}

h3 {
    font-size: var(--font-size-3xl);
}

h4 {
    font-size: var(--font-size-2xl);
}

h5 {
    font-size: var(--font-size-xl);
}

h6 {
    font-size: var(--font-size-lg);
}

p {
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--space-md);
}

/* Responsive Typography */
@media (min-width: 768px) {
    h1 {
        font-size: var(--font-size-6xl);
    }
    
    h2 {
        font-size: var(--font-size-5xl);
    }
    
    h3 {
        font-size: var(--font-size-4xl);
    }
}

/* Text Utilities */
.text-gradient {
    background: var(--gradient-text);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: var(--font-weight-bold);
}

.text-primary { color: var(--primary-blue); }
.text-secondary { color: var(--secondary-green); }
.text-muted { color: var(--neutral-600); }
.text-light { color: var(--neutral-400); }
.text-dark { color: var(--neutral-900); }
.text-white { color: var(--white); }

.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }

.font-light { font-weight: var(--font-weight-light); }
.font-normal { font-weight: var(--font-weight-normal); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }
.font-extrabold { font-weight: var(--font-weight-extrabold); }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* ==========================================================================
   LAYOUT & CONTAINER
   ========================================================================== */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

@media (min-width: 576px) {
    .container {
        padding: 0 var(--space-lg);
    }
}

@media (min-width: 1200px) {
    .container {
        padding: 0 var(--space-xl);
    }
}

.container-fluid {
    width: 100%;
    padding: 0 var(--space-md);
}

/* Grid System */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(-1 * var(--space-md) / 2);
}

.col {
    flex: 1;
    padding: 0 calc(var(--space-md) / 2);
}

.col-auto {
    flex: 0 0 auto;
    width: auto;
    padding: 0 calc(var(--space-md) / 2);
}

/* Responsive Columns */
.col-12 { flex: 0 0 100%; max-width: 100%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }

@media (min-width: 768px) {
    .col-md-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-md-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-md-3 { flex: 0 0 25%; max-width: 25%; }
    .col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-md-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-md-6 { flex: 0 0 50%; max-width: 50%; }
    .col-md-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-md-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-md-9 { flex: 0 0 75%; max-width: 75%; }
    .col-md-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-md-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-md-12 { flex: 0 0 100%; max-width: 100%; }
}

@media (min-width: 992px) {
    .col-lg-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-lg-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-lg-3 { flex: 0 0 25%; max-width: 25%; }
    .col-lg-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-lg-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-lg-6 { flex: 0 0 50%; max-width: 50%; }
    .col-lg-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-lg-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-lg-9 { flex: 0 0 75%; max-width: 75%; }
    .col-lg-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-lg-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-lg-12 { flex: 0 0 100%; max-width: 100%; }
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    text-decoration: none;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border: 2px solid transparent;
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    min-height: 44px; /* Touch-friendly minimum */
}

.btn:focus {
    outline: 2px solid var(--primary-blue-light);
    outline-offset: 2px;
}

.btn:disabled,
.btn.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

/* Button Shimmer Effect */
.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

/* Button Variants */
.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    color: var(--white);
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: var(--white);
    border-color: var(--secondary-green);
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    color: var(--white);
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.btn-outline-primary:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-light {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-outline-light:hover {
    background: var(--white);
    color: var(--neutral-900);
    border-color: var(--white);
    transform: translateY(-2px);
}

.btn-outline-secondary {
    background: transparent;
    color: var(--secondary-green);
    border-color: var(--secondary-green);
}

.btn-outline-secondary:hover {
    background: var(--secondary-green);
    color: var(--white);
    transform: translateY(-2px);
}

/* Button Sizes */
.btn-sm {
    padding: var(--space-xs) var(--space-md);
    font-size: var(--font-size-sm);
    min-height: 36px;
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--font-size-lg);
    min-height: 52px;
}

.btn-xl {
    padding: var(--space-lg) var(--space-2xl);
    font-size: var(--font-size-xl);
    min-height: 60px;
}

.btn-block {
    width: 100%;
}

/* Button Icons */
.btn i {
    display: inline-flex;
    align-items: center;
}

.btn i + span,
.btn span + i {
    margin-left: var(--space-xs);
}

/* ==========================================================================
   FORMS
   ========================================================================== */

.form-control {
    display: block;
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--neutral-700);
    background-color: var(--white);
    border: 2px solid var(--neutral-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    min-height: 44px;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.form-control::placeholder {
    color: var(--neutral-400);
    opacity: 1;
}

.form-control:disabled {
    background-color: var(--neutral-100);
    border-color: var(--neutral-200);
    opacity: 0.6;
    cursor: not-allowed;
}

/* Form Group */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--space-xs);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--neutral-700);
}

.form-text {
    margin-top: var(--space-xs);
    font-size: var(--font-size-sm);
    color: var(--neutral-500);
}

/* Input Groups */
.input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.input-group .form-control {
    flex: 1;
}

.input-group-text {
    display: flex;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--neutral-600);
    text-align: center;
    white-space: nowrap;
    background-color: var(--neutral-100);
    border: 2px solid var(--neutral-200);
}

/* ==========================================================================
   CARDS
   ========================================================================== */

.card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    background-color: var(--white);
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue-light);
}

.card-header {
    padding: var(--space-lg);
    background-color: var(--neutral-50);
    border-bottom: 1px solid var(--neutral-200);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.card-body {
    flex: 1 1 auto;
    padding: var(--space-lg);
}

.card-footer {
    padding: var(--space-lg);
    background-color: var(--neutral-50);
    border-top: 1px solid var(--neutral-200);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

.card-title {
    margin-bottom: var(--space-md);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--neutral-900);
}

.card-subtitle {
    margin-bottom: var(--space-sm);
    font-size: var(--font-size-sm);
    color: var(--neutral-600);
}

.card-text {
    margin-bottom: var(--space-md);
    color: var(--neutral-700);
}

/* ==========================================================================
   SECTIONS & CONTENT BLOCKS
   ========================================================================== */

.section {
    padding: var(--space-3xl) 0;
}

.section-sm {
    padding: var(--space-xl) 0;
}

.section-lg {
    padding: var(--space-4xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: rgba(0, 102, 255, 0.1);
    color: var(--primary-blue);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-md);
    border: 1px solid rgba(0, 102, 255, 0.2);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-extrabold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--space-md);
    color: var(--neutral-900);
}

@media (min-width: 768px) {
    .section-title {
        font-size: var(--font-size-5xl);
    }
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--neutral-600);
    line-height: var(--line-height-relaxed);
    margin-bottom: 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ==========================================================================
   HEADER & NAVIGATION STYLES
   ========================================================================== */

/* Main Header */
.modern-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: var(--white);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.modern-navbar.scrolled {
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(20px);
    background: rgba(255, 255, 255, 0.95);
}

/* Top Info Bar */
.navbar-top {
    background: var(--neutral-900);
    color: var(--white);
    padding: var(--space-xs) 0;
    font-size: var(--font-size-sm);
}

.navbar-top-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-info {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-xs);
}

.info-item i {
    color: var(--primary-blue);
    font-size: var(--font-size-xs);
}

.top-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

/* Language Selector */
.language-selector .dropdown-toggle {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.language-selector .dropdown-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-blue);
}

.language-selector .dropdown-menu {
    background: var(--white);
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--space-sm);
    margin-top: var(--space-xs);
    min-width: 150px;
}

.language-selector .dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-decoration: none;
    color: var(--neutral-700);
}

.language-selector .dropdown-item img {
    width: 16px;
    height: 12px;
    object-fit: cover;
}

.language-selector .dropdown-item:hover {
    background: var(--neutral-50);
    color: var(--primary-blue);
}

/* Social Links in Top Bar */
.social-links {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    text-decoration: none;
    transition: all var(--transition-normal);
    font-size: var(--font-size-xs);
}

.social-link:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

/* Main Navigation */
.navbar-main {
    background: var(--white);
    padding: var(--space-md) 0;
}

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Brand Logo */
.navbar-brand {
    flex-shrink: 0;
}

.brand-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-2xl);
    transition: all var(--transition-normal);
}

.brand-link:hover .logo-icon {
    transform: scale(1.05);
}

.logo-text .brand-name {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--neutral-900);
    line-height: 1;
}

.logo-text .brand-tagline {
    font-size: var(--font-size-xs);
    color: var(--neutral-600);
    line-height: 1;
    margin-top: 2px;
}

/* Desktop Navigation */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-md); /* 从 var(--space-lg) 改为 var(--space-md) */
}

.navbar-nav-desktop {
    display: flex;
    align-items: center;
    gap: var(--space-md); /* 从 var(--space-lg) 改为 var(--space-md) */
}

/* 调整导航链接的内边距 */
.nav-link {
    display: flex;
    align-items: center;
    padding: var(--space-sm) var(--space-sm); /* 从 var(--space-md) 改为 var(--space-sm) */
    color: var(--neutral-700);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    position: relative;
    font-size: var(--font-size-base);
    white-space: nowrap; /* 防止文字换行 */
}
.nav-item {
    position: relative;
}


.nav-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: width var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-blue);
    background: rgba(0, 102, 255, 0.05);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

/* Dropdown Menus */
.dropdown-menu {
    background: var(--white);
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--space-sm);
    margin-top: var(--space-sm);
    min-width: 250px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    color: var(--neutral-700);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--neutral-50);
    color: var(--primary-blue);
}

.dropdown-item .item-title {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
}

.dropdown-item .item-desc {
    font-size: var(--font-size-xs);
    color: var(--neutral-500);
    line-height: var(--line-height-normal);
}

/* Mega Menu */
.mega-menu {
    width: 800px;
    max-width: 90vw;
    padding: var(--space-lg);
}

.mega-menu-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.mega-menu-section {
    padding: var(--space-md);
    background: var(--neutral-50);
    border-radius: var(--radius-lg);
}

.mega-menu-title {
    display: flex;
    align-items: center;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--neutral-900);
    margin-bottom: var(--space-md);
}

.mega-menu-title i {
    color: var(--primary-blue);
    margin-right: var(--space-xs);
}

.mega-menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mega-menu-list li {
    margin-bottom: var(--space-xs);
}

.mega-menu-list a {
    color: var(--neutral-600);
    text-decoration: none;
    font-size: var(--font-size-sm);
    padding: var(--space-xs) 0;
    display: block;
    transition: color var(--transition-fast);
}

.mega-menu-list a:hover {
    color: var(--primary-blue);
}

.mega-menu-cta {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    text-align: center;
}

.mega-menu-cta h6 {
    color: var(--white);
    margin-bottom: var(--space-sm);
}

.mega-menu-cta p {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-md);
}

/* Search */
.search-container {
    position: relative;
}

.search-toggle {
    width: 40px;
    height: 40px;
    background: var(--neutral-100);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neutral-600);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.search-toggle:hover {
    background: var(--primary-blue);
    color: var(--white);
}

.search-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    width: 400px;
    max-width: 90vw;
    background: var(--white);
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--space-lg);
    margin-top: var(--space-sm);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
}

.search-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.search-input-group {
    position: relative;
    margin-bottom: var(--space-md);
}

.search-input {
    width: 100%;
    padding: var(--space-md);
    padding-right: 50px;
    border: 2px solid var(--neutral-200);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-normal);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.search-submit {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    background: var(--primary-blue);
    border: none;
    border-radius: var(--radius-md);
    color: var(--white);
    cursor: pointer;
    transition: background var(--transition-normal);
}

.search-submit:hover {
    background: var(--primary-blue-dark);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
}

.mobile-toggle-btn {
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    position: relative;
    padding: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
}

.toggle-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--neutral-700);
    transition: all var(--transition-normal);
    transform-origin: center;
}

.mobile-toggle-btn.active .toggle-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle-btn.active .toggle-line:nth-child(2) {
    opacity: 0;
}

.mobile-toggle-btn.active .toggle-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Navigation - 配合Bootstrap collapse */
.navbar-mobile {
    position: fixed;
    top: 80px; /* 直接从navbar下方开始 */
    left: 0;
    width: 100%;
    height: calc(100vh - 80px);
    background: var(--white);
    overflow-y: auto;
    z-index: var(--z-modal);
    box-shadow: var(--shadow-xl);
    /* Bootstrap collapse会处理显示/隐藏 */
}

.navbar-mobile.show {
    /* Bootstrap自动添加show类时的样式 */
    display: block !important;
}

/* 移动菜单动画效果 */
.navbar-mobile.collapsing {
    transition: height var(--transition-normal) ease;
}

/* 汉堡菜单动画 - 监听Bootstrap事件来切换 */
.mobile-toggle-btn[aria-expanded="true"] .toggle-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle-btn[aria-expanded="true"] .toggle-line:nth-child(2) {
    opacity: 0;
}

.mobile-toggle-btn[aria-expanded="true"] .toggle-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-nav-content {
    padding: var(--space-lg);
}

.mobile-search {
    margin-bottom: var(--space-lg);
}

.mobile-nav-menu {
    margin-bottom: var(--space-lg);
}

.mobile-nav-item {
    border-bottom: 1px solid var(--neutral-200);
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    color: var(--neutral-700);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-normal);
}

.mobile-nav-link:hover {
    color: var(--primary-blue);
}

.mobile-nav-link i {
    width: 20px;
    text-align: center;
    font-size: var(--font-size-base);
}

.submenu-arrow {
    margin-left: auto;
    font-size: var(--font-size-sm);
    transition: transform var(--transition-normal);
}

.mobile-nav-item.has-submenu.active .submenu-arrow {
    transform: rotate(90deg);
}

/* Mobile Submenu */
.mobile-submenu {
    position: fixed;
    top: 0;
    left: 100%;
    width: 100%;
    height: 100%;
    background: var(--white);
    z-index: calc(var(--z-modal) + 1);
    transition: left var(--transition-normal);
    overflow-y: auto;
}

.mobile-submenu.active {
    left: 0;
}

.submenu-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--neutral-50);
    border-bottom: 1px solid var(--neutral-200);
    font-weight: var(--font-weight-semibold);
}

.submenu-back {
    background: none;
    border: none;
    color: var(--primary-blue);
    font-size: var(--font-size-base);
    cursor: pointer;
    padding: 0;
}

.submenu-content {
    padding: var(--space-lg);
}

.submenu-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    color: var(--neutral-700);
    text-decoration: none;
    border-bottom: 1px solid var(--neutral-100);
    transition: color var(--transition-normal);
}

.submenu-item:hover {
    color: var(--primary-blue);
}

.mobile-nav-actions {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--neutral-200);
}

.mobile-contact-info {
    margin-bottom: var(--space-lg);
}

.mobile-contact-info .contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
    font-size: var(--font-size-sm);
}

.mobile-contact-info .contact-item i {
    color: var(--primary-blue);
    width: 16px;
}

.mobile-contact-info .contact-item a {
    color: var(--neutral-700);
    text-decoration: none;
}

.mobile-social {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    justify-content: center;
}

.mobile-language {
    text-align: center;
}

.language-select {
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-md);
    background: var(--white);
    color: var(--neutral-700);
    font-size: var(--font-size-sm);
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-modal) - 1);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    /* 确保初始完全隐藏 */
    pointer-events: none;
}

.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}


/* 确保子菜单内容可见 */
.mobile-submenu {
    position: fixed;
    top: 0;
    left: 100%;
    width: 100%;
    height: 100vh; /* 明确设置高度 */
    background: var(--white);
    z-index: calc(var(--z-modal) + 1);
    transition: left var(--transition-normal);
    overflow-y: auto;
    visibility: hidden; /* 添加可见性控制 */
}

.mobile-submenu.active {
    left: 0;
    visibility: visible; /* 激活时可见 */
}

/* 确保子菜单内容有正确的样式 */
.submenu-content {
    padding: var(--space-lg);
    min-height: calc(100vh - 80px); /* 确保有足够高度 */
}

.submenu-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    color: var(--neutral-700);
    text-decoration: none;
    border-bottom: 1px solid var(--neutral-100);
    transition: color var(--transition-normal);
    min-height: 44px; /* 确保触摸友好 */
}

.submenu-item:hover {
    color: var(--primary-blue);
    background: var(--neutral-50); /* 添加悬停背景 */
}

/* 确保子菜单在正确层级显示 */
.mobile-nav-item.has-active-submenu {
    position: relative;
    z-index: calc(var(--z-modal) + 2);
}
/* ==========================================================================
   MOBILE BOTTOM NAVIGATION
   ========================================================================== */

.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--white);
    border-top: 1px solid var(--neutral-200);
    z-index: var(--z-fixed);
    padding: var(--space-sm) 0;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-normal);
}

.bottom-nav-content {
    display: flex;
    justify-content: space-around;
    align-items: center;
    max-width: 500px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs);
    text-decoration: none;
    color: var(--neutral-500);
    transition: all var(--transition-normal);
    border-radius: var(--radius-md);
    min-width: 60px;
    font-size: var(--font-size-xs);
}

.bottom-nav-item:hover {
    color: var(--primary-blue);
}

.bottom-nav-item.active {
    color: var(--primary-blue);
}

.bottom-nav-item.bottom-nav-primary {
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-sm);
    transform: scale(1.1);
}

.bottom-nav-item.bottom-nav-primary:hover {
    color: var(--white);
    transform: scale(1.15);
}

.nav-icon {
    font-size: var(--font-size-lg);
}

.nav-label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    line-height: 1;
}

.bottom-nav-primary .nav-label {
    color: var(--white);
}

/* ==========================================================================
   FOOTER STYLES
   ========================================================================== */

.modern-footer {
    background: var(--neutral-900);
    color: var(--white);
    position: relative;
}

/* Main Footer */
.footer-main {
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-section {
    height: 100%;
}

.footer-brand {
    margin-bottom: var(--space-lg);
}

.footer-brand .brand-logo {
    margin-bottom: var(--space-md);
}

.footer-brand .logo-text .brand-name {
    color: var(--white);
}

.footer-brand .logo-text .brand-tagline {
    color: rgba(255, 255, 255, 0.7);
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--space-lg);
}

.footer-stats {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
}

.footer-stats .stat-item {
    text-align: center;
    flex: 1;
    min-width: 100px;
}

.footer-stats .stat-number {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--secondary-yellow);
    line-height: 1;
}

.footer-stats .stat-label {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.6);
    margin-top: var(--space-xs);
}

.footer-certifications {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.cert-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.9);
    transition: all var(--transition-normal);
    text-decoration: none;
}

.cert-item:hover {
    background: var(--primary-blue);
    transform: translateY(-2px);
    color: var(--white);
}

.footer-title {
    display: flex;
    align-items: center;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--white);
    margin-bottom: var(--space-lg);
}

.footer-title i {
    color: var(--primary-blue);
    margin-right: var(--space-xs);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: all var(--transition-normal);
    position: relative;
    padding-left: var(--space-md);
}

.footer-links a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 4px;
    background: var(--primary-blue);
    border-radius: 50%;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.footer-links a:hover {
    color: var(--white);
    padding-left: var(--space-md);
}

.footer-links a:hover::before {
    opacity: 1;
}

/* Contact Info Bar */
.footer-contact {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--space-xl) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    height: 100%;
    transition: all var(--transition-normal);
}

.contact-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: var(--white);
    flex-shrink: 0;
}

.contact-title {
    font-weight: var(--font-weight-semibold);
    color: var(--white);
    margin-bottom: var(--space-xs);
    font-size: var(--font-size-sm);
}

.contact-detail {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);
}

.contact-detail a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-normal);
}

.contact-detail a:hover {
    color: var(--secondary-yellow);
}

/* Newsletter Section */
.footer-newsletter {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--space-xl) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.newsletter-content {
    margin-bottom: var(--space-lg);
}

.newsletter-title {
    display: flex;
    align-items: center;
    color: var(--white);
    margin-bottom: var(--space-sm);
    font-size: var(--font-size-xl);
}

.newsletter-title i {
    color: var(--secondary-yellow);
    margin-right: var(--space-xs);
}

.newsletter-description {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0;
    line-height: var(--line-height-relaxed);
}

.newsletter-form {
    max-width: 400px;
}

@media (min-width: 992px) {
    .newsletter-form {
        margin-left: auto;
    }
}

.newsletter-input-group {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

@media (max-width: 575px) {
    .newsletter-input-group {
        flex-direction: column;
    }
}

.newsletter-input {
    flex: 1;
    padding: var(--space-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    font-size: var(--font-size-sm);
    min-height: 44px;
}

.newsletter-input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    background: rgba(255, 255, 255, 0.15);
}

.newsletter-button {
    padding: var(--space-md) var(--space-lg);
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-lg);
    color: var(--white);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    white-space: nowrap;
    min-height: 44px;
}

.newsletter-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.newsletter-privacy {
    color: rgba(255, 255, 255, 0.6);
    text-align: center;
    font-size: var(--font-size-xs);
}

/* Footer Bottom */
.footer-bottom {
    padding: var(--space-lg) 0;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.7);
}

.copyright-text {
    margin-bottom: var(--space-sm);
    font-size: var(--font-size-sm);
}

.footer-legal {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
    font-size: var(--font-size-xs);
}

@media (max-width: 767px) {
    .footer-legal {
        justify-content: center;
    }
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.footer-legal a:hover {
    color: var(--primary-blue);
}

.footer-legal .separator {
    color: rgba(255, 255, 255, 0.4);
}

.footer-social {
    text-align: right;
}

@media (max-width: 767px) {
    .footer-social {
        text-align: center;
        margin-top: var(--space-lg);
    }
}

.social-title {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-md);
}

.footer-social .social-links {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
}

@media (max-width: 767px) {
    .footer-social .social-links {
        justify-content: center;
    }
}

.footer-social .social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all var(--transition-normal);
    font-size: var(--font-size-base);
}

.footer-social .social-link:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

/* ==========================================================================
   FLOATING ELEMENTS
   ========================================================================== */

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: calc(100px + var(--space-lg));
    right: var(--space-lg);
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: var(--white);
    font-size: var(--font-size-xl);
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: var(--z-tooltip);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
}

@media (max-width: 991px) {
    .back-to-top {
        bottom: calc(80px + var(--space-lg));
        right: var(--space-md);
    }
}

/* WhatsApp Float */
.whatsapp-float {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    z-index: var(--z-toast);
}

@media (max-width: 991px) {
    .whatsapp-float {
        bottom: calc(80px + var(--space-lg));
        right: var(--space-md);
    }
}

.whatsapp-button {
    position: relative;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-2xl);
    text-decoration: none;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    animation: whatsappPulse 2s infinite;
}

.whatsapp-button:hover {
    transform: scale(1.1);
    color: var(--white);
}

.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--white);
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.whatsapp-button:hover .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
}

.tooltip-title {
    font-weight: var(--font-weight-semibold);
    color: var(--neutral-900);
    margin-bottom: var(--space-xs);
}

.tooltip-text {
    font-size: var(--font-size-sm);
    color: var(--neutral-600);
}

@keyframes whatsappPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

/* ==========================================================================
   LIVE CHAT WIDGET
   ========================================================================== */

.live-chat-widget {
    position: fixed;
    bottom: var(--space-lg);
    left: var(--space-lg);
    z-index: var(--z-tooltip);
}

@media (max-width: 991px) {
    .live-chat-widget {
        left: var(--space-md);
        bottom: calc(80px + var(--space-lg));
    }
}

.chat-minimized {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: var(--white);
    padding: var(--space-md);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    cursor: pointer;
    transition: all var(--transition-normal);
    max-width: 300px;
}

.chat-minimized:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-2xl);
}

.chat-trigger {
    position: relative;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.chat-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 20px;
    height: 20px;
    background: var(--secondary-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    color: var(--white);
}

.chat-preview {
    flex: 1;
}

.chat-avatar {
    width: 32px;
    height: 32px;
    background: var(--neutral-200);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neutral-600);
    margin-bottom: var(--space-sm);
}

.message-text {
    font-size: var(--font-size-sm);
    color: var(--neutral-900);
    margin-bottom: var(--space-xs);
}

.message-time {
    font-size: var(--font-size-xs);
    color: var(--neutral-500);
}

.chat-expanded {
    width: 350px;
    height: 500px;
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

@media (max-width: 575px) {
    .chat-expanded {
        width: calc(100vw - 2rem);
        max-width: 350px;
    }
}

.chat-header {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-title {
    font-weight: var(--font-weight-semibold);
}

.chat-close {
    background: none;
    border: none;
    color: var(--white);
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-body {
    flex: 1;
    padding: var(--space-md);
    overflow-y: auto;
}

.chat-message-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.chat-message-item {
    display: flex;
    gap: var(--space-sm);
}

.chat-message-item.agent .message-avatar {
    width: 32px;
    height: 32px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
}

.message-content {
    flex: 1;
}

.chat-message-item .message-text {
    background: var(--neutral-100);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-xs);
}

.chat-message-item .message-time {
    font-size: var(--font-size-xs);
    color: var(--neutral-500);
}

.chat-input {
    border-top: 1px solid var(--neutral-200);
    padding: var(--space-md);
}

.chat-form {
    display: flex;
    gap: var(--space-sm);
}

.chat-input-field {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
}

.chat-input-field:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.chat-send {
    width: 40px;
    height: 40px;
    background: var(--primary-blue);
    border: none;
    border-radius: 50%;
    color: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-normal);
}

.chat-send:hover {
    background: var(--primary-blue-dark);
}

/* ==========================================================================
   UTILITY CLASSES
   ========================================================================== */

/* Display */
.d-none { display: none !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }
.d-grid { display: grid !important; }

/* Flexbox Utilities */
.flex-row { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.flex-wrap { flex-wrap: wrap !important; }
.flex-nowrap { flex-wrap: nowrap !important; }
.justify-content-start { justify-content: flex-start !important; }
.justify-content-end { justify-content: flex-end !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }
.justify-content-around { justify-content: space-around !important; }
.align-items-start { align-items: flex-start !important; }
.align-items-end { align-items: flex-end !important; }
.align-items-center { align-items: center !important; }
.align-items-baseline { align-items: baseline !important; }
.align-items-stretch { align-items: stretch !important; }

/* Spacing */
.m-0 { margin: 0 !important; }
.mt-0 { margin-top: 0 !important; }
.mr-0 { margin-right: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.ml-0 { margin-left: 0 !important; }
.mx-0 { margin-left: 0 !important; margin-right: 0 !important; }
.my-0 { margin-top: 0 !important; margin-bottom: 0 !important; }

.m-1 { margin: var(--space-xs) !important; }
.mt-1 { margin-top: var(--space-xs) !important; }
.mr-1 { margin-right: var(--space-xs) !important; }
.mb-1 { margin-bottom: var(--space-xs) !important; }
.ml-1 { margin-left: var(--space-xs) !important; }
.mx-1 { margin-left: var(--space-xs) !important; margin-right: var(--space-xs) !important; }
.my-1 { margin-top: var(--space-xs) !important; margin-bottom: var(--space-xs) !important; }

.m-2 { margin: var(--space-sm) !important; }
.mt-2 { margin-top: var(--space-sm) !important; }
.mr-2 { margin-right: var(--space-sm) !important; }
.mb-2 { margin-bottom: var(--space-sm) !important; }
.ml-2 { margin-left: var(--space-sm) !important; }
.mx-2 { margin-left: var(--space-sm) !important; margin-right: var(--space-sm) !important; }
.my-2 { margin-top: var(--space-sm) !important; margin-bottom: var(--space-sm) !important; }

.m-3 { margin: var(--space-md) !important; }
.mt-3 { margin-top: var(--space-md) !important; }
.mr-3 { margin-right: var(--space-md) !important; }
.mb-3 { margin-bottom: var(--space-md) !important; }
.ml-3 { margin-left: var(--space-md) !important; }
.mx-3 { margin-left: var(--space-md) !important; margin-right: var(--space-md) !important; }
.my-3 { margin-top: var(--space-md) !important; margin-bottom: var(--space-md) !important; }

.m-4 { margin: var(--space-lg) !important; }
.mt-4 { margin-top: var(--space-lg) !important; }
.mr-4 { margin-right: var(--space-lg) !important; }
.mb-4 { margin-bottom: var(--space-lg) !important; }
.ml-4 { margin-left: var(--space-lg) !important; }
.mx-4 { margin-left: var(--space-lg) !important; margin-right: var(--space-lg) !important; }
.my-4 { margin-top: var(--space-lg) !important; margin-bottom: var(--space-lg) !important; }

.m-5 { margin: var(--space-xl) !important; }
.mt-5 { margin-top: var(--space-xl) !important; }
.mr-5 { margin-right: var(--space-xl) !important; }
.mb-5 { margin-bottom: var(--space-xl) !important; }
.ml-5 { margin-left: var(--space-xl) !important; }
.mx-5 { margin-left: var(--space-xl) !important; margin-right: var(--space-xl) !important; }
.my-5 { margin-top: var(--space-xl) !important; margin-bottom: var(--space-xl) !important; }

/* Padding classes follow the same pattern */
.p-0 { padding: 0 !important; }
.pt-0 { padding-top: 0 !important; }
.pr-0 { padding-right: 0 !important; }
.pb-0 { padding-bottom: 0 !important; }
.pl-0 { padding-left: 0 !important; }
.px-0 { padding-left: 0 !important; padding-right: 0 !important; }
.py-0 { padding-top: 0 !important; padding-bottom: 0 !important; }

.p-1 { padding: var(--space-xs) !important; }
.p-2 { padding: var(--space-sm) !important; }
.p-3 { padding: var(--space-md) !important; }
.p-4 { padding: var(--space-lg) !important; }
.p-5 { padding: var(--space-xl) !important; }

/* Position */
.position-static { position: static !important; }
.position-relative { position: relative !important; }
.position-absolute { position: absolute !important; }
.position-fixed { position: fixed !important; }
.position-sticky { position: sticky !important; }

/* Width and Height */
.w-25 { width: 25% !important; }
.w-50 { width: 50% !important; }
.w-75 { width: 75% !important; }
.w-100 { width: 100% !important; }
.w-auto { width: auto !important; }

.h-25 { height: 25% !important; }
.h-50 { height: 50% !important; }
.h-75 { height: 75% !important; }
.h-100 { height: 100% !important; }
.h-auto { height: auto !important; }

.min-vh-100 { min-height: 100vh !important; }

/* Overflow */
.overflow-hidden { overflow: hidden !important; }
.overflow-auto { overflow: auto !important; }

/* Background Colors */
.bg-primary { background-color: var(--primary-blue) !important; }
.bg-secondary { background-color: var(--secondary-green) !important; }
.bg-light { background-color: var(--neutral-100) !important; }
.bg-dark { background-color: var(--neutral-900) !important; }
.bg-white { background-color: var(--white) !important; }
.bg-transparent { background-color: transparent !important; }

/* Border Radius */
.rounded { border-radius: var(--radius-md) !important; }
.rounded-sm { border-radius: var(--radius-sm) !important; }
.rounded-lg { border-radius: var(--radius-lg) !important; }
.rounded-xl { border-radius: var(--radius-xl) !important; }
.rounded-2xl { border-radius: var(--radius-2xl) !important; }
.rounded-full { border-radius: var(--radius-full) !important; }

/* Shadow */
.shadow-none { box-shadow: none !important; }
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }
.shadow-xl { box-shadow: var(--shadow-xl) !important; }

/* ==========================================================================
   RESPONSIVE DESIGN FOR NAVIGATION & FOOTER
   ========================================================================== */

/* Navigation Responsive */
@media (max-width: 1199px) {
    .navbar-nav-desktop {
        display: none !important;
    }
    
    .navbar-actions {
        display: none !important;
    }
    
    .mobile-menu-toggle {
        display: block !important;
    }
}

@media (max-width: 991px) {
    .navbar-top {
        display: none !important;
    }
    
    .navbar-main {
        padding: var(--space-sm) 0;
    }
    
    .logo-text .brand-name {
        font-size: var(--font-size-xl);
    }
    
    .logo-icon {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-xl);
    }
    
    .mega-menu-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-stats {
        justify-content: center;
    }
    
    .footer-social {
        text-align: center;
    }
    
    .footer-social .social-links {
        justify-content: center;
    }
}

@media (max-width: 767px) {
    .mega-menu-content {
        grid-template-columns: 1fr;
    }
    
    .footer-stats {
        flex-direction: column;
        gap: var(--space-md);
        align-items: center;
    }
    
    .footer-certifications {
        justify-content: center;
    }
    
    .newsletter-content {
        text-align: center;
        margin-bottom: var(--space-lg);
    }
    
    .contact-card {
        flex-direction: column;
        text-align: center;
        padding: var(--space-md);
    }
    
    .whatsapp-tooltip {
        display: none;
    }
    
    .chat-minimized {
        max-width: 250px;
    }
}

@media (max-width: 575px) {
    .container {
        padding: 0 var(--space-sm);
    }
    
    .footer-main {
        padding: var(--space-xl) 0;
    }
    
    .mobile-nav-content {
        padding: var(--space-md);
    }
}

/* Body padding adjustments for fixed elements */
body {
    padding-top: 80px;
    padding-bottom: 80px;
}

@media (min-width: 992px) {
    body {
        padding-top: 120px;
        padding-bottom: 0;
    }
}

/* Skip navigation for accessibility */
.skip-navigation {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--neutral-900);
    color: var(--white);
    padding: 8px;
    text-decoration: none;
    border-radius: var(--radius-sm);
    z-index: var(--z-toast);
}

.skip-navigation:focus {
    top: 6px;
}

/* Print styles for navigation and footer */
@media print {
    .modern-navbar,
    .mobile-bottom-nav,
    .back-to-top,
    .whatsapp-float,
    .live-chat-widget {
        display: none !important;
    }
    
    body {
        padding-top: 0 !important;
        padding-bottom: 0 !important;
    }
    
    .modern-footer {
        background: var(--white) !important;
        color: var(--black) !important;
    }
    
    .footer-main,
    .footer-contact,
    .footer-newsletter {
        background: var(--white) !important;
    }
}

/* ==========================================================================
   NOTIFICATION SYSTEM (FOR GLOBAL USE)
   ========================================================================== */

.notification {
    position: fixed;
    top: 100px;
    right: var(--space-lg);
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-md);
    box-shadow: var(--shadow-2xl);
    z-index: var(--z-toast);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    max-width: 400px;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    border-left: 4px solid var(--primary-blue);
}

.notification.show {
    transform: translateX(0);
}

.notification-success {
    border-left-color: var(--secondary-green);
}

.notification-error {
    border-left-color: var(--secondary-red);
}

.notification-warning {
    border-left-color: var(--secondary-orange);
}

.notification-content {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex: 1;
}

.notification-content i {
    font-size: var(--font-size-lg);
}

.notification-success .notification-content i {
    color: var(--secondary-green);
}

.notification-error .notification-content i {
    color: var(--secondary-red);
}

.notification-warning .notification-content i {
    color: var(--secondary-orange);
}

.notification-close {
    background: none;
    border: none;
    color: var(--neutral-500);
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
}

.notification-close:hover {
    color: var(--neutral-700);
    background: var(--neutral-100);
}

/* ==========================================================================
   LOADING OVERLAY & GLOBAL COMPONENTS
   ========================================================================== */

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 1;
    visibility: visible;
    transition: all var(--transition-normal);
}

.loading-overlay.hide {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
    padding: var(--space-xl);
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--neutral-200);
    border-top: 4px solid var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-md);
}

.loading-text {
    color: var(--neutral-700);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
}

/* Skip Navigation for Accessibility */
.skip-navigation {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--neutral-900);
    color: var(--white);
    padding: 8px 12px;
    text-decoration: none;
    border-radius: var(--radius-sm);
    z-index: var(--z-toast);
    font-size: var(--font-size-sm);
    transition: all var(--transition-normal);
}

.skip-navigation:focus {
    top: 6px;
    color: var(--white);
}

/* ==========================================================================
   MODAL SYSTEM (FOR GLOBAL USE)
   ========================================================================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.8);
    transition: transform var(--transition-normal);
}

.modal-overlay.show .modal {
    transform: scale(1);
}

.modal-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--neutral-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--neutral-900);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    color: var(--neutral-500);
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    font-size: var(--font-size-xl);
}

.modal-close:hover {
    color: var(--neutral-700);
    background: var(--neutral-100);
}

.modal-body {
    padding: var(--space-lg);
}

.modal-footer {
    padding: var(--space-lg);
    border-top: 1px solid var(--neutral-200);
    display: flex;
    gap: var(--space-md);
    justify-content: flex-end;
}

/* ==========================================================================
   GLOBAL ANIMATIONS & PERFORMANCE
   ========================================================================== */

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Hardware acceleration for frequently animated elements */
.modern-navbar,
.mobile-bottom-nav,
.btn,
.card,
.back-to-top,
.whatsapp-button {
    will-change: transform;
    backface-visibility: hidden;
}

/* Optimize repaints during scroll */
.navbar-background,
.hero-background {
    will-change: transform;
    contain: layout style paint;
}

/* Intersection Observer animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in-up.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.6s ease;
}

.fade-in-left.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.6s ease;
}

.fade-in-right.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.6s ease;
}

.scale-in.animate-in {
    opacity: 1;
    transform: scale(1);
}

/* ==========================================================================
   ANIMATIONS & EFFECTS
   ========================================================================== */

/* Common Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translateY(0);
    }
    40%, 43% {
        transform: translateY(-10px);
    }
    70% {
        transform: translateY(-5px);
    }
    90% {
        transform: translateY(-2px);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.7;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Animation Classes */
.animate-fadeIn { animation: fadeIn 0.6s ease-out; }
.animate-fadeInUp { animation: fadeInUp 0.6s ease-out; }
.animate-fadeInDown { animation: fadeInDown 0.6s ease-out; }
.animate-slideInLeft { animation: slideInLeft 0.6s ease-out; }
.animate-slideInRight { animation: slideInRight 0.6s ease-out; }
.animate-bounce { animation: bounce 2s infinite; }
.animate-pulse { animation: pulse 2s infinite; }
.animate-spin { animation: spin 1s linear infinite; }

/* Hover Effects */
.hover-lift {
    transition: transform var(--transition-normal);
}

.hover-lift:hover {
    transform: translateY(-4px);
}

.hover-scale {
    transition: transform var(--transition-normal);
}

.hover-scale:hover {
    transform: scale(1.05);
}

/* ==========================================================================
   PRINT STYLES
   ========================================================================== */

@media print {
    *,
    *::before,
    *::after {
        background: transparent !important;
        color: black !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    a,
    a:visited {
        text-decoration: underline;
    }
    
    a[href]:after {
        content: " (" attr(href) ")";
    }
    
    abbr[title]:after {
        content: " (" attr(title) ")";
    }
    
    pre,
    blockquote {
        border: 1px solid #999;
        page-break-inside: avoid;
    }
    
    thead {
        display: table-header-group;
    }
    
    tr,
    img {
        page-break-inside: avoid;
    }
    
    img {
        max-width: 100% !important;
    }
    
    p,
    h2,
    h3 {
        orphans: 3;
        widows: 3;
    }
    
    h2,
    h3 {
        page-break-after: avoid;
    }
}

/* ==========================================================================
   ACCESSIBILITY IMPROVEMENTS
   ========================================================================== */

/* Focus styles for better accessibility */
*:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Skip link for screen readers */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--neutral-900);
    color: var(--white);
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 10000;
}

.skip-link:focus {
    top: 6px;
}

/* Screen reader only text */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    .animate-fadeIn,
    .animate-fadeInUp,
    .animate-fadeInDown,
    .animate-slideInLeft,
    .animate-slideInRight,
    .animate-bounce,
    .animate-pulse,
    .animate-spin {
        animation: none;
    }
    
    .hover-lift:hover,
    .hover-scale:hover {
        transform: none;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --neutral-100: #f0f0f0;
        --neutral-200: #e0e0e0;
        --neutral-300: #c0c0c0;
        --neutral-400: #a0a0a0;
        --neutral-500: #808080;
        --neutral-600: #606060;
        --neutral-700: #404040;
        --neutral-800: #202020;
        --neutral-900: #000000;
    }
}

/* Prefers dark mode (for future dark theme support) */
@media (prefers-color-scheme: dark) {
    /* Dark mode variables would go here */
    /* This is prepared for future dark theme implementation */
}