/* ============================================
   Reset & Base Styles
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Purple & Violet Theme Colors - inspired by adhd-precheck */
    --primary-purple: #8B5CF6;
    --primary-dark: #7C3AED;
    --primary-light: #A78BFA;
    --secondary-violet: #6366F1;
    --secondary-dark: #4F46E5;
    --accent-pink: #EC4899;
    --accent-blue: #3B82F6;
    
    --success-color: #10B981;
    --danger-color: #EF4444;
    --warning-color: #F59E0B;
    
    --text-dark: #1F2937;
    --text-medium: #4B5563;
    --text-light: #6B7280;
    --text-lighter: #9CA3AF;
    
    --bg-dark: #0F172A;
    --bg-darker: #020617;
    --bg-light: #F9FAFB;
    --bg-white: #FFFFFF;
    --border-color: #E5E7EB;
    
    --shadow-sm: 0 1px 3px rgba(139, 92, 246, 0.12);
    --shadow-md: 0 4px 20px rgba(139, 92, 246, 0.15);
    --shadow-lg: 0 10px 40px rgba(139, 92, 246, 0.2);
    --shadow-xl: 0 20px 60px rgba(139, 92, 246, 0.3);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #8B5CF6 0%, #6366F1 100%);
    --gradient-secondary: linear-gradient(135deg, #EC4899 0%, #8B5CF6 100%);
    --gradient-hero: linear-gradient(135deg, #6366F1 0%, #8B5CF6 50%, #EC4899 100%);
    --gradient-dark: linear-gradient(135deg, #1E1B4B 0%, #312E81 100%);
    --gradient-card: linear-gradient(135deg, rgba(139, 92, 246, 0.05) 0%, rgba(99, 102, 241, 0.05) 100%);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Typography */
    --font-primary: 'Noto Sans KR', sans-serif;
    --font-secondary: 'Nanum Gothic', sans-serif;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
}

body {
    font-family: var(--font-primary);
    color: var(--text-dark);
    background: var(--bg-light);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ============================================
   Header
   ============================================ */
.header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(139, 92, 246, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    cursor: pointer;
    transition: transform 0.3s ease;
}

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

.logo i {
    font-size: 1.8rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-medium);
    text-decoration: none;
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--primary-purple);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-purple);
    cursor: pointer;
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(8px);
}

.mobile-menu-content {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    background: var(--bg-white);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-lg);
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.mobile-menu.active .mobile-menu-content {
    transform: translateX(0);
}

.mobile-menu-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-purple);
    cursor: pointer;
    margin-bottom: var(--spacing-lg);
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mobile-nav-link {
    color: var(--text-medium);
    text-decoration: none;
    font-weight: 600;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: var(--primary-purple);
    background: var(--gradient-card);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    background: var(--gradient-hero);
    color: white;
    padding: var(--spacing-2xl) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(5deg); }
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    line-height: 1.2;
}

.hero-title-line {
    font-size: 1.8rem;
    font-weight: 600;
    opacity: 0.95;
    letter-spacing: -0.5px;
}

.hero-title-highlight {
    background: rgba(255, 255, 255, 0.15);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-xl);
    display: inline-block;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-description {
    font-size: 1.3rem;
    opacity: 0.95;
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
    font-weight: 400;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    min-width: 150px;
}

.stat-number {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: var(--spacing-xs);
    background: linear-gradient(135deg, #FFFFFF 0%, rgba(255, 255, 255, 0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
    font-weight: 500;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-full);
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    font-family: var(--font-primary);
    position: relative;
    overflow: hidden;
}

.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;
}

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

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
}

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

.btn-danger:hover {
    background: #DC2626;
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: 1.2rem;
}

.btn-load-more {
    background: var(--bg-white);
    color: var(--primary-purple);
    border: 2px solid var(--primary-light);
}

.btn-load-more:hover {
    border-color: var(--primary-purple);
    background: var(--gradient-card);
}

/* ============================================
   Library Section
   ============================================ */
.library {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: 2.8rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--spacing-sm);
}

.section-description {
    font-size: 1.2rem;
    color: var(--text-light);
    font-weight: 500;
}

/* Filters */
.filters {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.filter-search {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.filter-search i {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-purple);
    font-size: 1.1rem;
}

.search-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl) var(--spacing-md) 3rem;
    border: 2px solid rgba(139, 92, 246, 0.2);
    border-radius: var(--radius-full);
    font-size: 1.05rem;
    font-family: var(--font-primary);
    transition: all 0.3s ease;
    background: var(--bg-light);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-purple);
    background: var(--bg-white);
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.1);
}

.clear-search {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: var(--spacing-xs);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.clear-search.active {
    opacity: 1;
    pointer-events: all;
}

.filter-categories {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.category-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid rgba(139, 92, 246, 0.2);
    border-radius: var(--radius-full);
    background: var(--bg-white);
    color: var(--text-medium);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.category-btn:hover {
    border-color: var(--primary-purple);
    color: var(--primary-purple);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

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

.filter-sort {
    display: flex;
    justify-content: flex-end;
}

.sort-select {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid rgba(139, 92, 246, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.95rem;
    font-family: var(--font-primary);
    font-weight: 600;
    cursor: pointer;
    background: var(--bg-white);
    color: var(--text-medium);
    transition: all 0.3s ease;
}

.sort-select:focus {
    outline: none;
    border-color: var(--primary-purple);
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.1);
}

/* Category Tags */
.category-tags {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.category-tag {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--bg-white);
    border: 2px solid rgba(139, 92, 246, 0.15);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-medium);
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-tag:hover {
    border-color: var(--primary-purple);
    color: var(--primary-purple);
    background: var(--gradient-card);
    transform: translateY(-2px);
}

.category-tag.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

/* Results Info */
.results-info {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-size: 1.05rem;
    color: var(--text-light);
    font-weight: 600;
}

/* Messages Grid */
.messages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.message-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.message-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.message-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(139, 92, 246, 0.3);
}

.message-card:hover::before {
    transform: scaleX(1);
}

.message-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
    gap: var(--spacing-sm);
}

.message-category {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--primary-purple);
    background: var(--gradient-card);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    flex: 1;
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.message-number {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-lighter);
}

.message-text {
    font-size: 1.15rem;
    line-height: 1.7;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
    flex: 1;
    font-weight: 600;
}

.message-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(139, 92, 246, 0.1);
}

.message-source {
    font-size: 0.8rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
}

.message-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.message-action-btn {
    background: var(--gradient-card);
    border: 1px solid rgba(139, 92, 246, 0.2);
    color: var(--primary-purple);
    font-size: 1.1rem;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.message-action-btn:hover {
    background: var(--gradient-primary);
    color: white;
    transform: scale(1.1);
    border-color: transparent;
}

.message-action-btn.bookmarked {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

/* Load More */
.load-more-container {
    text-align: center;
}

/* ============================================
   Random Section
   ============================================ */
.random-section {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-white);
}

.random-container {
    max-width: 800px;
    margin: 0 auto;
}

.random-card {
    background: var(--gradient-hero);
    color: white;
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    margin-bottom: var(--spacing-xl);
    min-height: 350px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.random-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.random-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.random-category {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 700;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.random-number {
    font-size: 0.9rem;
    font-weight: 700;
    opacity: 0.9;
}

.random-message {
    font-size: 2rem;
    line-height: 1.6;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.random-source {
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.8;
    font-weight: 600;
    position: relative;
    z-index: 1;
}

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

/* ============================================
   Bookmarks Section
   ============================================ */
.bookmarks-section {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-light);
}

.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 2px dashed rgba(139, 92, 246, 0.3);
}

.empty-state i {
    font-size: 5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--spacing-md);
}

.empty-state h3 {
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.empty-state p {
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    font-size: 1.1rem;
}

.bookmarks-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

/* ============================================
   About Section
   ============================================ */
.about-section {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-white);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.about-title {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--spacing-md);
}

.about-description {
    font-size: 1.2rem;
    color: var(--text-medium);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    font-weight: 500;
}

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

.social-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--gradient-card);
    color: var(--primary-purple);
    text-decoration: none;
    border-radius: var(--radius-full);
    font-weight: 700;
    transition: all 0.3s ease;
    border: 2px solid rgba(139, 92, 246, 0.2);
}

.social-link:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.social-link i {
    font-size: 1.3rem;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--gradient-dark);
    color: white;
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.footer-logo i {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-text {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    font-weight: 500;
}

/* ============================================
   Toast Notification
   ============================================ */
.toast {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transform: translateY(150%);
    transition: transform 0.3s ease;
    z-index: 3000;
    font-weight: 700;
}

.toast.show {
    transform: translateY(0);
}

.toast i {
    color: white;
    font-size: 1.3rem;
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease;
}

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

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-title-line {
        font-size: 1.3rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-stats {
        gap: var(--spacing-md);
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .messages-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-categories {
        flex-direction: column;
    }
    
    .category-btn {
        width: 100%;
        justify-content: center;
    }
    
    .random-message {
        font-size: 1.5rem;
    }
    
    .social-links {
        flex-direction: column;
    }
    
    .social-link {
        width: 100%;
        justify-content: center;
    }
    
    .toast {
        left: var(--spacing-md);
        right: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero {
        padding: var(--spacing-xl) 0;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .message-text {
        font-size: 1.05rem;
    }
    
    .random-card {
        padding: var(--spacing-lg);
    }
    
    .random-message {
        font-size: 1.3rem;
    }
    
    .filters {
        padding: var(--spacing-md);
    }
}

/* ============================================
   Scrollbar Styling
   ============================================ */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gradient-secondary);
}