/**
 * LIBROS PUBLICATION - Main Stylesheet
 * Professional Book Publication Website
 */

/* ============================================================
   CSS VARIABLES - LUXURY PREMIUM DESIGN
   ============================================================ */
:root {
    /* Premium Brand Colors */
    --primary: #0B1F33;                 /* Deep Navy - Luxury */
    --primary-dark: #050f1a;            /* Darker Navy */
    --primary-light: #1a3a52;           /* Light Navy */
    --primary-lighter: #2a4a62;         /* Lighter Navy */
    
    --accent: #D4AF37;                  /* Premium Gold */
    --accent-light: #E8C547;            /* Light Gold */
    --accent-dark: #AA8C2C;             /* Dark Gold */
    
    /* Luxury Neutrals */
    --white: #FFFFFF;                   /* Pure White */
    --ivory: #FEFDFB;                   /* Luxury Ivory */
    --light-bg: #F5F3F0;                /* Warm Light */
    --text-dark: #1A1A1A;               /* Near Black */
    --text-primary: #2C2C2C;            /* Premium Dark Gray */
    --text-secondary: #727272;          /* Medium Gray */
    --text-light: #A0A0A0;              /* Light Gray */
    --border: #E8E6E1;                  /* Luxury Border */
    --border-light: #F0EDE8;            /* Very Light Border */
    
    /* Aliases for compatibility */
    --bg-white: #FFFFFF;
    --bg-ivory: #FEFDFB;
    --bg-light: #F5F3F0;
    --border-color: #E8E6E1;
    --accent-color: #D4AF37;
    
    /* Semantic */
    --success: #2D9F6B;
    --error: #D32F2F;
    --warning: #F9A825;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-serif: 'Playfair Display', 'Georgia', serif;
    --font-size-base: 16px;
    --line-height-base: 1.65;
    
    /* Spacing - Luxury */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 5rem;
    
    /* Borders */
    --radius-xs: 2px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Shadows - Luxury */
    --shadow-xs: 0 1px 3px rgba(11, 31, 51, 0.08);
    --shadow-sm: 0 2px 8px rgba(11, 31, 51, 0.12);
    --shadow-md: 0 4px 16px rgba(11, 31, 51, 0.15);
    --shadow-lg: 0 8px 24px rgba(11, 31, 51, 0.18);
    --shadow-xl: 0 12px 40px rgba(11, 31, 51, 0.2);
    --shadow-2xl: 0 20px 64px rgba(11, 31, 51, 0.22);
    --shadow-gold: 0 8px 24px rgba(212, 175, 55, 0.25);
    --shadow-inset: inset 0 1px 2px rgba(255, 255, 255, 0.5);
    
    /* Transitions */
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --duration-fast: 150ms;
    --duration-base: 300ms;
    --duration-slow: 500ms;
}

/* ============================================================
   ANIMATIONS & KEYFRAMES
   ============================================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

/* Animation Classes */
.animate-fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

.animate-fade-in-down {
    animation: fadeInDown 0.6s ease-out forwards;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.6s ease-out forwards;
}

.animate-fade-in-right {
    animation: fadeInRight 0.6s ease-out forwards;
}

.animate-scale-in {
    animation: scaleIn 0.5s ease-out forwards;
}

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }
.animate-delay-5 { animation-delay: 0.5s; }
.animate-delay-6 { animation-delay: 0.6s; }

/* ============================================================
   RESET & BASE STYLES
   ============================================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--font-size-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: var(--line-height-base);
    color: var(--text-primary);
    background: linear-gradient(135deg, #FEFDFB 0%, #F5F3F0 100%);
    background-attachment: fixed;
    overflow-x: hidden;
    letter-spacing: 0.2px;
}

/* Smooth scroll for all interactive elements */
body, html {
    scroll-behavior: smooth;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

img:hover {
    transform: scale(1.02);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all var(--transition-fast);
    position: relative;
}

a:hover {
    color: var(--primary-dark);
}

/* Animated underline for links */
a.link-animated {
    position: relative;
}

a.link-animated::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-base);
}

a.link-animated:hover::after {
    width: 100%;
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-sm);
}

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.main-content {
    min-height: calc(100vh - 400px);
}

/* ============================================================
   HEADER & NAVIGATION - Premium Academic Design
   ============================================================ */
.site-header {
    background: var(--bg-white);
    border-bottom: 2px solid var(--accent-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.navbar {
    padding: var(--spacing-md) 0;
}

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.navbar-brand {
    flex-shrink: 0;
}

.navbar-brand .logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    white-space: nowrap;
    letter-spacing: -0.5px;
}
.logo{
    width: 120px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    color: var(--text-primary);
}

/* Apply desktop navbar-menu styles only on desktop */
@media (min-width: 769px) {
    .navbar-menu {
        display: flex;
        align-items: center;
        gap: var(--spacing-lg);
        flex: 1;
        justify-content: space-between;
    }
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-sm);
    margin: 0;
    align-items: center;
}

.nav-links a {
    color: var(--text-primary);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    white-space: nowrap;
    font-size: 0.9375rem;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: all var(--transition-base);
    transform: translateX(-50%);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-shrink: 0;
}

.nav-icon {
    position: relative;
    color: var(--text-primary);
    padding: var(--spacing-xs);
    transition: color var(--transition-fast);
}

.nav-icon:hover {
    color: var(--accent-color);
}

.cart-icon .cart-count {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--accent-color);
    color: var(--primary-color);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

/* User Menu Dropdown */
.user-menu {
    position: relative;
}

.user-menu-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    color: var(--text-primary);
}

.user-dropdown {
    display: none;
    position: absolute;
    top: 50%;
    right: 0;
    margin-top: var(--spacing-xs);
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 240px;
    z-index: 1000;
}

.user-menu:hover .user-dropdown {
    display: block;
}

.user-info {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    background-color: #fff;
}

.user-name {
    font-weight: 600;
    color: var(--text-primary);
}

.user-email {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    transition: background var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-xs) 0;
}

/* ============================================================
   BUTTONS - Premium Academic Design with Gold Accents
   ============================================================ */
.btn {
    display: inline-block;
    padding: 0.625rem 1.25rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    z-index: 1;
    letter-spacing: 0.3px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    z-index: -1;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-bottom: 3px solid var(--accent-color);
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-accent {
    background: var(--accent-color);
    color: var(--primary-color);
    border-color: var(--accent-color);
    font-weight: 700;
    box-shadow: var(--shadow-gold);
}

.btn-accent:hover {
    background: var(--accent-light);
    border-color: var(--accent-light);
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(200, 164, 93, 0.3);
}

.btn-outline {
    background: transparent;
    color: #d4af37;
    border-color: var(--primary-color);
    font-weight: 600;
}

.btn-outline:hover {
    background: #fbab4e;
    color: rgb(0, 0, 0);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.875rem 2rem;
    font-size: 1.125rem;
    font-weight: 700;
}

/* ============================================================
   SECTIONS - Premium Academic Design
   ============================================================ */
.section {
    padding: var(--spacing-xl) 0;
    position: relative;
    overflow: hidden;
}

.section.bg-light {
    background: var(--bg-ivory);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.section.bg-white {
    background: var(--bg-white);
}

/* Section entrance animation */
.section {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

.section:nth-child(even) {
    animation-delay: 0.1s;
}

.section:nth-child(odd) {
    animation-delay: 0.2s;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    animation: fadeInDown 0.6s ease-out forwards;
}

.section-header.text-center {
    flex-direction: column;
    text-align: center;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
    position: relative;
    display: inline-block;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

/* Elegant underline for section titles */
.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--accent-color);
    border-radius: 2px;
    opacity: 0;
    animation: slideUp 0.6s ease-out 0.3s forwards;
}

.section-header.text-center .section-title::after {
    display: block;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-sm);
    animation: fadeIn 0.6s ease-out 0.4s forwards;
    opacity: 0;
}

.section-link {
    color: var(--accent-color);
    font-weight: 600;
    transition: all var(--transition-base);
    position: relative;
    padding-right: 20px;
}

.section-link::after {
    content: '→';
    position: absolute;
    right: 0;
    transition: transform var(--transition-base);
    color: var(--accent-color);
}

.section-link:hover::after {
    transform: translateX(5px);
}

/* ============================================================
   HERO SECTION - Professional 3D Parallax Design
   ============================================================ */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    padding: 120px 0;
    position: relative;
    overflow: hidden;
    color: white;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 1000px;
}

/* Parallax Background Layers */
.hero-bg-layer {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0;
}

.hero-bg-layer-1 {
    background: radial-gradient(circle at 80% 20%, rgba(212, 175, 55, 0.15) 0%, transparent 50%);
}

.hero-bg-layer-2 {
    background: radial-gradient(circle at 20% 80%, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
}

.hero-bg-layer-3 {
    background: radial-gradient(circle at 50% 50%, rgba(212, 175, 55, 0.08) 0%, transparent 70%);
    mix-blend-mode: overlay;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    transform-style: preserve-3d;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.3);
    color: rgba(255, 255, 255, 0.9);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    margin-bottom: var(--spacing-lg);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    backdrop-filter: blur(10px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    animation: fadeInDown 0.8s ease-out forwards;
    opacity: 0;
}

.hero-badge:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(212, 175, 55, 0.5);
    transform: translateY(-2px);
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: white;
    animation: fadeInDown 0.8s ease-out 0.1s forwards;
    opacity: 0;
    letter-spacing: -1.5px;
    line-height: 1.15;
    font-family: 'Playfair Display', serif;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
    animation: fadeInUp 0.8s ease-out 0.2s forwards;
    opacity: 0;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
    letter-spacing: 0.3px;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.3s forwards;
    opacity: 0;
    margin-bottom: var(--spacing-2xl);
}

.hero-btn {
    display: inline-flex;
    align-items: center;
    min-width: 200px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.hero-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.2) 0%, transparent 80%);
    border-radius: 6px;
    opacity: 0;
    transition: opacity 0.4s;
}

.hero-btn:hover {
    transform: translateY(-4px) scale(1.02);
}

.hero-btn:hover::after {
    opacity: 1;
}

/* Stats Section with 3D Cards */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.4s forwards;
    opacity: 0;
    perspective: 1000px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateZ(0);
    cursor: pointer;
}

.stat-card:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(212, 175, 55, 0.5);
    transform: translateY(-8px) translateZ(50px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.5px;
    line-height: 1;
}

.stat-plus {
    font-size: 1.5rem;
}

.stat-fraction {
    font-size: 1.5rem;
    opacity: 0.8;
}

.stat-label {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    letter-spacing: 0.3px;
}

/* Scroll Indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: 30px;
    transform: translateX(-50%);
    text-align: center;
    z-index: 2;
    animation: fadeIn 1s ease-out 0.8s forwards;
    opacity: 0;
}

.scroll-dot {
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    margin: 0 auto 10px;
    animation: bounce 2s infinite;
}

.hero-scroll-indicator p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin: 0;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 80px 0;
        min-height: 80vh;
    }
    
    .hero-title {
        font-size: 2.5rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: var(--spacing-lg);
    }
    
    .hero-actions {
        flex-direction: column;
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-xl);
    }
    
    .hero-btn {
        min-width: auto;
        width: 100%;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 0;
        min-height: 70vh;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}

/* ============================================================
   BOOK GRID - Premium Academic Design
   ============================================================ */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.book-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.book-card:nth-child(1) { animation-delay: 0.1s; }
.book-card:nth-child(2) { animation-delay: 0.2s; }
.book-card:nth-child(3) { animation-delay: 0.3s; }
.book-card:nth-child(4) { animation-delay: 0.4s; }
.book-card:nth-child(5) { animation-delay: 0.5s; }
.book-card:nth-child(6) { animation-delay: 0.6s; }

.book-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-color);
}

.book-card.fade-in {
    animation: fadeIn 0.5s ease;
}

.book-cover {
    position: relative;
    width: 100%;
    aspect-ratio: 2/3;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-ivory) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-bottom: 3px solid var(--accent-color);
}

.book-cover::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(200, 164, 93, 0.2), transparent);
    transition: left 0.6s;
}

.book-card:hover .book-cover::before {
    left: 100%;
}

.book-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.book-card:hover .book-cover img {
    transform: scale(1.08);
}

.book-cover-placeholder {
    color: var(--text-light);
    transition: transform var(--transition-base);
}

.book-card:hover .book-cover-placeholder {
    transform: scale(1.1) rotate(5deg);
}

.books-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-md);
    background: var(--accent-color);
    color: var(--primary-color);
    box-shadow: var(--shadow-md);
    animation: pulse 2s infinite;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.book-badge {
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-md);
    background: var(--accent-color);
    color: var(--primary-color);
    box-shadow: var(--shadow-md);
    animation: pulse 2s infinite;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.badge-new {
    background: rgb(255, 215, 0);
    color: white;
}

.badge-bestseller {
    background: var(--accent-color);
    color: var(--primary-color);
}

.book-info {
    padding: var(--spacing-md);
    background: var(--bg-white);
    transition: all var(--transition-base);
    border-top: 2px solid var(--border-light);
}

.book-card:hover .book-info {
    background: var(--bg-ivory);
}

.book-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    transition: color var(--transition-base);
    color: var(--primary-color);
    line-height: 1.4;
}

.book-title a {
    color: var(--primary-color);
}

.book-card:hover .book-title a {
    color: var(--accent-color);
}

.book-author {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-style: italic;
}

.book-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.5px;
}

/* EBook Format Badges */
.book-pricing {
    margin-bottom: var(--spacing-sm);
}

.book-formats {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
}

.format-badge {
    display: inline-block;
    padding: 4px 8px;
    background: var(--bg-light);
    color: var(--text-secondary);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.format-badge svg {
    flex-shrink: 0;
}

.format-badge.print {
    background: #e8f5e8;
    color: #2d5e2d;
    border-color: #b8e6b8;
}

.format-badge.ebook {
    background: #e6f3ff;
    color: #1e3a8a;
    border-color: #93c5fd;
}

.price-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-right: var(--spacing-xs);
}

/* ============================================================
   AUTHOR GRID - Premium Academic Design
   ============================================================ */
.authors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.author-card {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.author-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
    border-color: var(--accent-color);
}

.author-image {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-md);
    border-radius: 50%;
    overflow: hidden;
    background: linear-gradient(135deg, var(--accent-light), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid var(--accent-color);
    box-shadow: var(--shadow-md);
}

.author-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-image-placeholder {
    color: var(--text-light);
}

.author-name {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--primary-color);
}

.author-name a {
    color: var(--primary-color);
}

.author-name a:hover {
    color: var(--accent-color);
}

.author-designation {
    font-size: 0.875rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.author-bio {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.author-books {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--accent-color);
}

/* ============================================================
   FEATURES GRID - Premium Academic Design
   ============================================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-color);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--accent-light), var(--accent-color));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 2rem;
    font-weight: 700;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.feature-text {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================================
   PUBLISHING PROCESS
   ============================================================ */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.process-step {
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.step-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.step-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Simple & Responsive Process Grid */
.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.process-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--duration-base) var(--ease-smooth);
    box-shadow: var(--shadow-sm);
}

.process-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
    transform: translateY(-4px);
}

.process-card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin: 0 auto var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.process-number {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.process-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.2px;
}

.process-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

@media (max-width: 768px) {
    .process-grid {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
        gap: var(--spacing-md);
    }
    
    .process-card {
        padding: var(--spacing-md);
    }
    
    .process-card-icon {
        width: 50px;
        height: 50px;
    }
    
    .process-title {
        font-size: 1rem;
    }
    
    .process-text {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .process-grid {
        grid-template-columns: 1fr;
    }
}

.process-cta {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* ============================================================
   CTA SECTION - Premium Academic Design
   ============================================================ */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(200, 164, 93, 0.15) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.5px;
}

.cta-text {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    font-weight: 500;
}

.cta-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-section .btn-primary {
    background: var(--accent-color);
    color: var(--primary-color);
    border-color: var(--accent-color);
    font-weight: 700;
}

.cta-section .btn-primary:hover {
    background: var(--accent-light);
    border-color: var(--accent-light);
    box-shadow: var(--shadow-gold);
}

.cta-section .btn-outline {
    border-color: white;
    color: white;
    font-weight: 600;
}

.cta-section .btn-outline:hover {
    background: white;
    color: #000;
}

/* ============================================================
   FOOTER - Premium Academic Design
   ============================================================ */
.site-footer {
    background: var(--primary-color);
    color: white;
    border-top: 3px solid var(--accent-color);
}

.footer-main {
    padding: var(--spacing-xl) 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: white;
}

.footer-text {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-md);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: background var(--transition-fast);
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-sm);
    width: fit-content;
}

.newsletter-input {
    flex: 1;
    padding: 0.625rem var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 0.875rem;
}

.newsletter-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg) 0;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

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

.footer-bottom-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

.footer-bottom-links a:hover {
    color: white;
}

/* ============================================================
   ALERTS
   ============================================================ */
.flash-messages {
    padding: var(--spacing-md) 0;
}

.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (min-width: 1200px) {
    .container {
        max-width: 1400px;
    }
    
    .navbar-menu {
        gap: var(--spacing-xl);
    }
    
    .nav-links {
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .navbar-content {
        position: relative;
    }
    
    .navbar-menu {
        display: none !important;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        z-index: 999;
        max-height: calc(100vh - 70px);
        overflow-y: auto;
        width: 100%;
        animation: slideDown 0.3s ease-out forwards;
    }
    
    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .navbar-menu.active {
        display: flex !important;
    }
    
    .nav-links {
        flex-direction: column;
        width: 100%;
        gap: 0;
        margin-bottom: var(--spacing-md);
    }
    
    .nav-links li {
        width: 100%;
        border-bottom: 1px solid var(--border);
    }
    
    .nav-links li:last-child {
        border-bottom: none;
    }
    
    .nav-links a {
        display: block;
        width: 100%;
        padding: var(--spacing-sm) var(--spacing-md) !important;
        color: var(--text-primary);
    }
    
    .nav-links a::after {
        display: none;
    }
    
    .navbar-actions {
        flex-direction: row;
        gap: var(--spacing-md);
        width: 100%;
        border-top: 1px solid var(--border);
        padding-top: var(--spacing-md);
        flex-wrap: wrap;
        justify-content: flex-start;
    }
    
    .navbar-actions .btn {
        flex: 1;
        min-width: 150px;
    }
    
    .user-dropdown {
        position: fixed;
        top: auto;
        bottom: auto;
        right: auto;
        left: var(--spacing-md);
        max-width: calc(100% - var(--spacing-lg));
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .books-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--spacing-md);
    }
    
    .cta-title {
        font-size: 1.75rem;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}


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

/* Ripple Effect for Buttons */
.btn {
    position: relative;
    overflow: hidden;
}

.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple-animation 0.6s ease-out;
    pointer-events: none;
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Scrolled Header Effect */
.site-header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
}

/* Loading State */
body {
    opacity: 0;
    transition: opacity 0.5s ease;
}

body.loaded {
    opacity: 1;
}

/* Hover Glow Effect for Cards */
.book-card:hover,
.author-card:hover,
.package-card:hover,
.testimonial-card:hover {
    box-shadow: 0 10px 40px rgba(0, 123, 255, 0.2);
}

/* Gradient Text Animation */
@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.gradient-text {
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark), var(--primary-color));
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 3s ease infinite;
}

/* Staggered Animation Classes */
.animate-visible {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

.animate-child {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

/* Bounce Animation for CTA */
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

.cta-section .btn-primary {
    animation: bounce 2s infinite;
}

.cta-section .btn-primary:hover {
    animation: none;
}

/* Floating Icons Animation */
.feature-icon svg,
.trust-badge .badge-icon svg {
    animation: float 3s ease-in-out infinite;
}

/* Pulse Animation for Badges */
@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(0, 123, 255, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(0, 123, 255, 0.8);
    }
}

.badge-new,
.badge-bestseller {
    animation: pulse-glow 2s infinite;
}

/* Smooth Link Transitions */
.nav-links a {
    position: relative;
}

.nav-links a::before {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-links a:hover::before,
.nav-links a.active::before {
    width: 80%;
}

/* Enhanced Form Focus */
.form-control:focus {
    transform: scale(1.02);
    box-shadow: 0 0 0 4px rgba(0, 123, 255, 0.1);
}


/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: rgb(0, 0, 0);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0, 123, 255, 0.4);
    opacity: 0;
    transform: translateY(100px);
    transition: all var(--transition-base);
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-5px);
    box-shadow: 0 6px 25px rgba(0, 123, 255, 0.5);
}

.back-to-top:active {
    transform: translateY(-2px);
}

.back-to-top svg {
    animation: bounce-arrow 2s infinite;
}

@keyframes bounce-arrow {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-5px);
    }
    60% {
        transform: translateY(-3px);
    }
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}


/* ============================================================
   AUTH PAGES (LOGIN, REGISTER, VERIFY EMAIL)
   ============================================================ */
.auth-section {
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: var(--spacing-xl) 0;
}

.auth-container {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.auth-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    animation: scaleIn 0.5s ease-out;
}

.auth-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.auth-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.auth-form {
    margin-bottom: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    font-size: 0.9375rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    background: var(--bg-white);
    color: var(--text-primary);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.form-control:hover {
    border-color: var(--primary-color);
}

.form-control::placeholder {
    color: var(--text-light);
}

.password-field {
    position: relative;
}

.password-field .form-control {
    padding-right: 3rem;
}

.password-toggle {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.password-toggle:hover {
    color: var(--primary-color);
}

.btn-block {
    width: 100%;
    padding: 0.875rem;
    font-size: 1rem;
    font-weight: 600;
}

.auth-footer {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.auth-footer a {
    color: var(--primary-color);
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Form Row for side-by-side inputs */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-hint {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 0.25rem;
    cursor: pointer;
    width: 16px;
    height: 16px;
}

.checkbox-label span {
    font-size: 0.875rem;
    line-height: 1.6;
}

.checkbox-label a {
    color: var(--primary-color);
    font-weight: 500;
}

.checkbox-label a:hover {
    text-decoration: underline;
}

/* Verify Email Page Styles */
.verify-container {
    max-width: 450px;
}

.verify-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.otp-inputs {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin: var(--spacing-lg) 0;
}

.otp-input {
    width: 50px;
    height: 60px;
    text-align: center;
    font-size: 1.5rem;
    font-weight: 600;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.otp-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.resend-link {
    text-align: center;
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
}

.resend-link a {
    color: var(--primary-color);
    font-weight: 500;
}

.resend-link a:hover {
    text-decoration: underline;
}

.resend-link.disabled {
    opacity: 0.5;
    pointer-events: none;
}

/* Responsive Auth Pages */
@media (max-width: 768px) {
    .auth-card {
        padding: var(--spacing-lg);
    }
    
    .auth-title {
        font-size: 1.75rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .otp-inputs {
        gap: var(--spacing-xs);
    }
    
    .otp-input {
        width: 45px;
        height: 55px;
        font-size: 1.25rem;
    }
}

/* ============================================================
   SCROLL PROGRESS BAR
   ============================================================ */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    z-index: 1000;
    transition: width 0.1s ease-out;
}

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

/* Text Color Utilities */
.text-primary {
    color: var(--primary-color);
}

.text-secondary {
    color: var(--secondary-color);
}

.text-accent {
    color: var(--accent-color);
}

.text-white {
    color: var(--bg-white);
}

.text-muted {
    color: var(--text-secondary);
}

.text-light {
    color: var(--text-light);
}

.text-success {
    color: var(--success-color);
}

.text-error {
    color: var(--danger-color);
}

.text-warning {
    color: var(--warning-color);
}

.text-info {
    color: var(--info-color);
}

/* Background Color Utilities */
.bg-primary {
    background-color: var(--primary-color);
    color: white;
}

.bg-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.bg-accent {
    background-color: var(--accent-color);
    color: var(--primary-color);
}

.bg-white {
    background-color: var(--bg-white);
}

.bg-light {
    background-color: var(--bg-light);
}

.bg-success {
    background-color: var(--success-color);
    color: white;
}

.bg-error {
    background-color: var(--danger-color);
    color: white;
}

.bg-warning {
    background-color: var(--warning-color);
    color: var(--text-primary);
}

.bg-info {
    background-color: var(--info-color);
    color: white;
}

/* Border Color Utilities */
.border-primary {
    border-color: var(--primary-color);
}

.border-secondary {
    border-color: var(--secondary-color);
}

.border-accent {
    border-color: var(--accent-color);
}

.border-muted {
    border-color: var(--border-color);
}

.border-success {
    border-color: var(--success-color);
}

.border-error {
    border-color: var(--danger-color);
}

/* Button Color Variants */
.btn-secondary {
    background: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

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

.btn-accent {
    background: var(--accent-color);
    color: var(--primary-color);
    border-color: var(--accent-color);
    font-weight: 600;
}

.btn-accent:hover {
    background: var(--accent-light);
    border-color: var(--accent-light);
    transform: translateY(-2px);
}

.btn-success {
    background: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

.btn-success:hover {
    background: #0d9e6f;
    border-color: #0d9e6f;
    color: white;
    transform: translateY(-2px);
}

.btn-error {
    background: var(--danger-color);
    color: white;
    border-color: var(--danger-color);
}

.btn-error:hover {
    background: #dc2626;
    border-color: #dc2626;
    color: white;
    transform: translateY(-2px);
}

.btn-warning {
    background: var(--warning-color);
    color: var(--text-primary);
    border-color: var(--warning-color);
}

.btn-warning:hover {
    background: #d97706;
    border-color: #d97706;
    transform: translateY(-2px);
}

/* Alert Color Variants */
.alert-success {
    background: #ECFDF5;
    color: #065F46;
    border-left: 4px solid var(--success-color);
}

.alert-error {
    background: #FEF2F2;
    color: #7F1D1D;
    border-left: 4px solid var(--danger-color);
}

.alert-warning {
    background: #FFFBEB;
    color: #92400E;
    border-left: 4px solid var(--warning-color);
}

.alert-info {
    background: #EFF6FF;
    color: #1E40AF;
    border-left: 4px solid var(--info-color);
}

/* Gradient Backgrounds */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.bg-gradient-secondary {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: white;
}

.bg-gradient-accent {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-dark) 100%);
    color: var(--primary-color);
}