/**
 * KalviYogi - Premium Student Portal Styles
 * World-Class UI with Modern Aesthetics
 * 
 * Import Order:
 * 1. premium-design-system.css (variables & utilities)
 * 2. animations.css (animation library)
 * 3. student.css (this file - component styles)
 */

/* ========================================
   LAYOUT - Page Structure
   ======================================== */

.page-wrapper {
    display: flex;
    min-height: 100vh;
    background: var(--color-bg-primary);
    position: relative;
}

/* Premium Background Effects - Gold Theme */
.page-wrapper::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse 100% 80% at 20% -20%, rgba(212, 175, 55, 0.06), transparent 50%),
        radial-gradient(ellipse 80% 60% at 80% 110%, rgba(184, 150, 12, 0.04), transparent 40%),
        linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
    pointer-events: none;
    z-index: 0;
}

.main-content {
    flex: 1;
    margin-left: 280px;
    margin-top: 72px;
    padding: var(--spacing-8);
    position: relative;
    z-index: 1;
    min-height: calc(100vh - 72px);
}

@media (max-width: 1024px) {
    .main-content {
        margin-left: 0;
        padding: var(--spacing-6);
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: var(--spacing-4);
    }
}

/* ========================================
   SIDEBAR - Navigation
   ======================================== */

.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 280px;
    background: var(--glass-bg-strong);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border-right: 1px solid var(--color-border-subtle);
    z-index: var(--z-fixed);
    overflow-y: auto;
    transition: transform var(--duration-normal) var(--ease-out);
}

.sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
    opacity: 0.5;
}

/* Sidebar Header */
.sidebar-header {
    padding: var(--spacing-6);
    border-bottom: 1px solid var(--color-border-subtle);
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.03) 0%, transparent 100%);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    text-decoration: none;
    transition: transform var(--duration-fast) var(--ease-out);
}

.sidebar-logo:hover {
    transform: translateX(2px);
}

.sidebar-logo-img {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-xl);
    object-fit: contain;
    filter: drop-shadow(0 4px 12px rgba(99, 102, 241, 0.3));
}

.sidebar-logo-content {
    display: flex;
    flex-direction: column;
}

.sidebar-logo-text {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: var(--tracking-tight);
}

.sidebar-logo-subtitle {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    margin-top: 2px;
}

/* Sidebar Navigation */
.sidebar-nav {
    padding: var(--spacing-4);
}

.nav-section {
    margin-bottom: var(--spacing-6);
}

.nav-section-title {
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    padding: 0 var(--spacing-3);
    margin-bottom: var(--spacing-3);
}

.nav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    margin-bottom: var(--spacing-1);
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    transition: all var(--duration-fast) var(--ease-out);
    position: relative;
    overflow: hidden;
}

.nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transition: transform var(--duration-fast) var(--ease-out);
    border-radius: 0 var(--radius-full) var(--radius-full) 0;
}

.nav-item:hover {
    color: var(--color-text-primary);
    background: rgba(99, 102, 241, 0.08);
    transform: translateX(2px);
}

.nav-item.active {
    color: var(--color-primary);
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.15), rgba(99, 102, 241, 0.05));
    font-weight: var(--font-semibold);
}

.nav-item.active::before {
    transform: scaleY(1);
}

/* Premium Upgrade Item */
.nav-item-premium,
.nav-item[href*="upgrade"] {
    background: linear-gradient(135deg, rgba(212, 168, 83, 0.1), rgba(169, 124, 47, 0.05)) !important;
    border: 1px solid rgba(212, 168, 83, 0.2);
    border-left: 3px solid var(--color-primary);
    margin-top: var(--spacing-2);
}

.nav-item-premium:hover,
.nav-item[href*="upgrade"]:hover {
    background: linear-gradient(135deg, rgba(212, 168, 83, 0.15), rgba(169, 124, 47, 0.1)) !important;
    border-color: rgba(212, 168, 83, 0.3);
    border-left-color: var(--color-primary-light);
    box-shadow: var(--shadow-primary);
}

.nav-item-premium .nav-icon,
.nav-item-premium span,
.nav-item[href*="upgrade"] .nav-icon,
.nav-item[href*="upgrade"] span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Mobile Sidebar */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }
}

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: calc(var(--z-fixed) - 1);
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-out);
}

@media (max-width: 1024px) {
    .sidebar-overlay.active {
        display: block;
        opacity: 1;
    }
}

/* ========================================
   HEADER - Top Navigation
   ======================================== */

.header {
    position: fixed;
    top: 0;
    left: 280px;
    right: 0;
    height: 72px;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--color-border-subtle);
    padding: 0 var(--spacing-8);
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: calc(var(--z-fixed) - 1);
    transition: all var(--duration-normal) var(--ease-out);
}

@media (max-width: 1024px) {
    .header {
        left: 0;
        padding: 0 var(--spacing-6);
    }
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--color-text-primary);
    cursor: pointer;
    padding: var(--spacing-2);
    border-radius: var(--radius-md);
    transition: all var(--duration-fast) var(--ease-out);
}

.mobile-menu-btn:hover {
    background: var(--color-bg-hover);
}

@media (max-width: 1024px) {
    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

.page-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--color-text-primary);
    letter-spacing: var(--tracking-tight);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.header-action-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
}

.header-action-btn:hover {
    background: var(--color-bg-hover);
    color: var(--color-primary);
}

/* User Menu */
.user-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-2) var(--spacing-3);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
}

.user-menu:hover {
    background: var(--color-bg-hover);
    border-color: var(--color-border-default);
    box-shadow: var(--shadow-sm);
}

.user-avatar {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: white;
    font-weight: var(--font-bold);
    font-size: var(--text-sm);
    border-radius: var(--radius-full);
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
    line-height: var(--leading-tight);
}

.user-role {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    line-height: var(--leading-tight);
}

@media (max-width: 768px) {
    .user-info {
        display: none;
    }
}

/* ========================================
   PAGE HEADER
   ======================================== */

.page-header {
    margin-bottom: var(--spacing-8);
    animation: fadeInDown var(--duration-slow) var(--ease-out);
}

.page-header h1 {
    font-size: var(--text-4xl);
    font-weight: var(--font-extrabold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-2);
    letter-spacing: var(--tracking-tight);
}

.page-header p {
    font-size: var(--text-lg);
    color: var(--color-text-tertiary);
}

@media (max-width: 768px) {
    .page-header h1 {
        font-size: var(--text-3xl);
    }

    .page-header p {
        font-size: var(--text-base);
    }
}

/* ========================================
   PROGRESS STATS - Dashboard Cards
   ======================================== */

.progress-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-8);
}

.progress-stat-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-6);
    position: relative;
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-out);
}

.progress-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--duration-normal) var(--ease-out);
}

.progress-stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-border-default);
    box-shadow: var(--shadow-xl);
}

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

.progress-stat-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-4);
    color: white;
}

.progress-stat-value {
    font-size: var(--text-4xl);
    font-weight: var(--font-extrabold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-1);
    line-height: var(--leading-none);
}

.progress-stat-label {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    font-weight: var(--font-medium);
}

/* ========================================
   CONTINUE WATCHING - Hero Section
   ======================================== */

.continue-watching {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
    margin-bottom: var(--spacing-8);
    position: relative;
    overflow: hidden;
}

.continue-watching::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.continue-watching-header {
    margin-bottom: var(--spacing-6);
}

.continue-watching-header h2 {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.continue-watching-header h2::before {
    content: '▶';
    color: var(--color-primary);
    font-size: var(--text-lg);
}

.continue-watching-content {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: var(--spacing-8);
    align-items: center;
}

@media (max-width: 1024px) {
    .continue-watching-content {
        grid-template-columns: 1fr;
    }
}

.continue-video-thumbnail {
    position: relative;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: block;
    transition: all var(--duration-normal) var(--ease-out);
}

.continue-video-thumbnail:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-2xl);
}

.continue-video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.continue-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: white;
    box-shadow: var(--shadow-primary);
    transition: all var(--duration-normal) var(--ease-out);
}

.continue-video-thumbnail:hover .continue-play-btn {
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: var(--shadow-glow-md);
}

.continue-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: rgba(0, 0, 0, 0.3);
}

.continue-progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    transition: width var(--duration-normal) var(--ease-out);
}

.continue-video-info h3 {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-3);
    line-height: var(--leading-tight);
}

.continue-video-info p {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    margin-bottom: var(--spacing-4);
}

.continue-video-meta {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.continue-video-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* ========================================
   SECTION HEADER
   ======================================== */

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-6);
}

.section-header h2 {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--color-text-primary);
}

.section-header a {
    font-size: var(--text-sm);
    color: var(--color-primary);
    text-decoration: none;
    font-weight: var(--font-semibold);
    transition: all var(--duration-fast) var(--ease-out);
}

.section-header a:hover {
    color: var(--color-primary-light);
    transform: translateX(4px);
}

/* ========================================
   GRID LAYOUTS
   ======================================== */

.grid {
    display: grid;
    gap: var(--spacing-6);
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1280px) {
    .grid-cols-4 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1024px) {

    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }
}

.mb-lg {
    margin-bottom: var(--spacing-8);
}

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

.course-card {
    display: block;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    text-decoration: none;
    transition: all var(--duration-normal) var(--ease-out);
    position: relative;
}

.course-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: var(--gradient-primary);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-out);
}

.course-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-2xl);
}

.course-card:hover::before {
    opacity: 1;
}

.course-card-thumbnail {
    position: relative;
    aspect-ratio: 16 / 9;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.course-card-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-slow) var(--ease-out);
}

.course-card:hover .course-card-thumbnail img {
    transform: scale(1.05);
}

.course-card-thumbnail-icon {
    font-size: var(--text-5xl);
}

.course-card-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: rgba(0, 0, 0, 0.3);
}

.course-card-progress-bar {
    height: 100%;
    background: var(--gradient-accent);
    transition: width var(--duration-normal) var(--ease-out);
}

.course-card-body {
    padding: var(--spacing-5);
}

.course-card-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-3);
    line-height: var(--leading-tight);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-card-stats {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-4);
}

.course-card-stats span {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

.course-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-4);
    border-top: 1px solid var(--color-border-subtle);
}

.course-progress-text {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.video-card {
    display: block;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-xl);
    overflow: hidden;
    text-decoration: none;
    transition: all var(--duration-normal) var(--ease-out);
}

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

.video-card-thumbnail {
    position: relative;
    aspect-ratio: 16 / 9;
    background: var(--color-bg-tertiary);
    overflow: hidden;
}

.video-card-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-slow) var(--ease-out);
}

.video-card:hover .video-card-thumbnail img {
    transform: scale(1.08);
}

.video-card-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: white;
    opacity: 0;
    transition: all var(--duration-normal) var(--ease-out);
}

.video-card:hover .video-card-play {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.1);
}

.video-card-duration {
    position: absolute;
    bottom: var(--spacing-2);
    right: var(--spacing-2);
    padding: var(--spacing-1) var(--spacing-2);
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: white;
}

.video-card-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: rgba(0, 0, 0, 0.3);
}

.video-card-progress-bar {
    height: 100%;
    background: var(--gradient-primary);
}

.video-card-body {
    padding: var(--spacing-4);
}

.video-card-title {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-2);
    line-height: var(--leading-tight);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-card-meta {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--duration-fast) var(--ease-out);
    white-space: nowrap;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-md);
}

.btn-secondary {
    background: var(--color-bg-card);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-default);
}

.btn-secondary:hover {
    background: var(--color-bg-hover);
    border-color: var(--color-border-strong);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
}

.btn-ghost:hover {
    background: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.btn-sm {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--text-sm);
}

.btn-lg {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--text-lg);
}

/* ========================================
   EMPTY STATES
   ======================================== */

.card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
}

.empty-state {
    text-align: center;
    padding: var(--spacing-12) var(--spacing-6);
}

.empty-state-icon {
    font-size: var(--text-6xl);
    margin-bottom: var(--spacing-4);
    opacity: 0.5;
}

.empty-state-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-2);
}

.empty-state-text {
    font-size: var(--text-base);
    color: var(--color-text-tertiary);
    line-height: var(--leading-relaxed);
}

/* ========================================
   RESPONSIVE UTILITIES
   ======================================== */

@media (max-width: 1024px) {
    .hide-tablet {
        display: none !important;
    }
}

@media (max-width: 768px) {
    .hide-mobile {
        display: none !important;
    }
}

@media (min-width: 769px) {
    .show-mobile {
        display: none !important;
    }
}