/**
 * YogiChain Mobile App 2025
 * Premium Native App-like Experience
 * Modern Design System with Neumorphism + Glassmorphism
 */

/* ===== 2025 Design Variables ===== */
:root {
    /* Primary Gradients - Royal Gold Theme */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-gold: linear-gradient(135deg, #D4AF37 0%, #A68B2C 100%);
    --gradient-success: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --gradient-purple: linear-gradient(135deg, #8e2de2 0%, #4a00e0 100%);
    --gradient-blue: linear-gradient(135deg, #2193b0 0%, #6dd5ed 100%);
    --gradient-sunset: linear-gradient(135deg, #fa709a 0%, #fee140 100%);

    /* Background System - Premium Black */
    --bg-base: #000000;
    --bg-primary: #050505;
    --bg-elevated: #0A0A0A;
    --bg-card: rgba(255, 255, 255, 0.02);
    --bg-card-hover: rgba(255, 255, 255, 0.05);
    --bg-glass: rgba(10, 10, 15, 0.8);

    /* Border System */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-medium: rgba(255, 255, 255, 0.1);
    --border-glow: rgba(102, 126, 234, 0.3);
    --border-gold: rgba(212, 175, 55, 0.3);

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.4);
    --text-accent: #667eea;
    --text-gold: #D4AF37;

    /* Glow Effects - Royal Gold */
    --glow-primary: 0 0 40px rgba(102, 126, 234, 0.3);
    --glow-gold: 0 0 40px rgba(212, 175, 55, 0.3);
    --glow-success: 0 0 40px rgba(56, 239, 125, 0.3);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
    --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.3);

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;

    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Animation */
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);

    /* App Layout */
    --header-height: 64px;
    --nav-height: 72px;
    --safe-top: env(safe-area-inset-top, 0px);
    --safe-bottom: env(safe-area-inset-bottom, 0px);
}

/* ===== Global Resets ===== */
* {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    background: var(--bg-base);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.5;
    overscroll-behavior-y: contain;
    -webkit-font-smoothing: antialiased;
}

/* ===== Mesh Gradient Background ===== */
/* Disabled - was causing floating orb visual issues */
.app-bg-mesh {
    display: none;
}

/* ===== Premium App Header ===== */
.app-header-2025 {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: calc(var(--header-height) + var(--safe-top));
    padding-top: var(--safe-top);
    background: linear-gradient(180deg, rgba(8, 8, 12, 0.95) 0%, rgba(8, 8, 12, 0.8) 100%);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-subtle);
    z-index: 1000;
}

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

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

.app-logo-icon {
    width: 44px;
    height: 44px;
    background: var(--gradient-gold);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 18px;
    color: #000;
    box-shadow: var(--glow-gold);
}

.app-logo-text {
    font-size: 20px;
    font-weight: 700;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Premium Bottom Navigation ===== */
.bottom-nav-2025 {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(var(--nav-height) + var(--safe-bottom));
    padding-bottom: var(--safe-bottom);
    background: linear-gradient(180deg, rgba(13, 13, 18, 0.95) 0%, rgba(8, 8, 12, 0.98) 100%);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-top: 1px solid var(--border-subtle);
    display: flex;
    z-index: 1000;
}

.nav-item-2025 {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 8px 4px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 11px;
    font-weight: 500;
    position: relative;
    transition: color 0.3s var(--ease-smooth);
}

.nav-item-2025 svg {
    width: 26px;
    height: 26px;
    stroke-width: 1.8;
    transition: all 0.3s var(--ease-smooth);
}

.nav-item-2025.active {
    color: var(--text-gold);
}

.nav-item-2025.active svg {
    filter: drop-shadow(0 0 8px rgba(245, 175, 25, 0.5));
}

.nav-item-2025.active::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 48px;
    height: 3px;
    background: var(--gradient-gold);
    border-radius: 0 0 4px 4px;
    box-shadow: 0 0 12px rgba(245, 175, 25, 0.5);
}

/* ===== 2025 Card System ===== */
.card-2025 {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    position: relative;
    overflow: hidden;
    transition: all 0.4s var(--ease-smooth);
}

.card-2025::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.4s;
}

.card-2025:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
    box-shadow: var(--glow-primary);
}

.card-2025:hover::before {
    opacity: 1;
}

.card-2025:active {
    transform: translateY(-2px) scale(0.98);
}

/* Card with gradient border */
.card-gradient {
    position: relative;
    background: var(--bg-elevated);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
}

.card-gradient::before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 1px;
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.5), rgba(118, 75, 162, 0.3), rgba(245, 175, 25, 0.3));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

/* ===== 2025 Button System ===== */
.btn-2025 {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 14px 28px;
    background: var(--gradient-primary);
    color: white;
    font-weight: 600;
    font-size: 15px;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    overflow: hidden;
    transition: all 0.3s var(--ease-smooth);
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);
}

.btn-2025::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(rgba(255, 255, 255, 0.1), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.btn-2025:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.4);
}

.btn-2025:hover::before {
    opacity: 1;
}

.btn-2025:active {
    transform: translateY(0) scale(0.98);
}

.btn-2025-gold {
    background: var(--gradient-gold);
    box-shadow: 0 4px 20px rgba(245, 175, 25, 0.3);
}

.btn-2025-gold:hover {
    box-shadow: 0 8px 30px rgba(245, 175, 25, 0.4);
}

.btn-2025-outline {
    background: transparent;
    border: 1px solid var(--border-medium);
    box-shadow: none;
}

.btn-2025-outline:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-glow);
    box-shadow: var(--glow-primary);
}

/* Button Ripple Effect */
.btn-ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: scale(0);
    animation: ripple 0.6s linear;
    pointer-events: none;
}

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

/* ===== 2025 Hero Section ===== */
.hero-2025 {
    padding: var(--space-2xl) var(--space-md);
    text-align: center;
    position: relative;
}

.hero-2025 h1 {
    font-size: 32px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    animation: fadeInUp 0.8s var(--ease-smooth);
}

.hero-2025 h1 span {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-2025 p {
    color: var(--text-secondary);
    font-size: 16px;
    max-width: 320px;
    margin: 0 auto var(--space-lg);
    animation: fadeInUp 0.8s var(--ease-smooth) 0.1s both;
}

.hero-2025 .btn-2025 {
    animation: fadeInUp 0.8s var(--ease-smooth) 0.2s both;
}

/* ===== 2025 Stats Grid ===== */
.stats-grid-2025 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    padding: 0 var(--space-md) var(--space-lg);
}

.stat-card-2025 {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-lg) var(--space-md);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.stat-card-2025::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
}

.stat-card-2025:nth-child(2)::before {
    background: var(--gradient-gold);
}

.stat-card-2025:nth-child(3)::before {
    background: var(--gradient-success);
}

.stat-icon-2025 {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-sm);
}

.stat-icon-2025 svg {
    width: 24px;
    height: 24px;
}

.stat-value-2025 {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.stat-label-2025 {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

/* ===== 2025 Exam Cards Grid ===== */
.exam-grid-2025 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    padding: 0 var(--space-md) var(--space-lg);
}

.exam-card-2025 {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    text-align: center;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    transition: all 0.4s var(--ease-smooth);
}

.exam-card-2025::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s;
}

.exam-card-2025:hover {
    border-color: var(--border-glow);
    transform: translateY(-6px) scale(1.02);
    box-shadow: var(--glow-primary);
}

.exam-card-2025:hover::before {
    opacity: 1;
}

.exam-card-2025:active {
    transform: translateY(-2px) scale(0.98);
}

.exam-icon-2025 {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
    transition: transform 0.4s var(--ease-spring);
}

.exam-card-2025:hover .exam-icon-2025 {
    transform: scale(1.1) rotate(-5deg);
}

.exam-icon-2025 svg {
    width: 32px;
    height: 32px;
}

.exam-card-2025 h3 {
    font-size: 15px;
    font-weight: 700;
    color: #FFFFFF !important;
    margin-bottom: var(--space-xs);
    line-height: 1.3;
}

.exam-card-2025 p {
    font-size: 13px;
    color: #B0B0B0 !important;
}

/* Prevent any color change on exam cards */
.exam-card-2025:hover h3,
.exam-card-2025:active h3,
.exam-card-2025:focus h3 {
    color: #FFFFFF !important;
}

.exam-card-2025:hover p,
.exam-card-2025:active p,
.exam-card-2025:focus p {
    color: #B0B0B0 !important;
}

a.exam-card-2025,
a.exam-card-2025:hover,
a.exam-card-2025:active,
a.exam-card-2025:focus,
a.exam-card-2025:visited {
    color: inherit !important;
    text-decoration: none !important;
}

/* ===== 2025 Section Headers ===== */
.section-header-2025 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) var(--space-md) var(--space-md);
}

.section-header-2025 h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.section-header-2025 h2::before {
    content: '';
    width: 4px;
    height: 20px;
    background: var(--gradient-gold);
    border-radius: 2px;
}

.section-header-2025 a {
    font-size: 14px;
    color: var(--text-gold);
    font-weight: 600;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: opacity 0.3s;
}

.section-header-2025 a:hover {
    opacity: 0.8;
}

/* ===== 2025 List Items ===== */
.list-2025 {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    margin: 0 var(--space-md) var(--space-lg);
    overflow: hidden;
}

.list-item-2025 {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    border-bottom: 1px solid var(--border-subtle);
    text-decoration: none;
    color: inherit;
    transition: background 0.3s;
}

.list-item-2025:last-child {
    border-bottom: none;
}

.list-item-2025:hover {
    background: var(--bg-card-hover);
}

.list-item-2025:active {
    background: rgba(255, 255, 255, 0.08);
}

.list-icon-2025 {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.list-icon-2025 svg {
    width: 24px;
    height: 24px;
}

.list-content-2025 {
    flex: 1;
    min-width: 0;
}

.list-content-2025 h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.list-content-2025 p {
    font-size: 13px;
    color: var(--text-muted);
}

/* ===== 2025 Quick Actions ===== */
.quick-actions-2025 {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md) var(--space-md);
    overflow-x: auto;
    scrollbar-width: none;
}

.quick-actions-2025::-webkit-scrollbar {
    display: none;
}

.chip-2025 {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 12px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
    text-decoration: none;
    transition: all 0.3s var(--ease-smooth);
}

.chip-2025:hover {
    border-color: var(--border-glow);
    color: var(--text-accent);
}

.chip-2025.active {
    background: var(--gradient-gold);
    color: #000;
    border-color: transparent;
    box-shadow: var(--glow-gold);
}

.chip-2025 svg {
    width: 18px;
    height: 18px;
}

/* ===== 2025 Tabs ===== */
.tabs-2025 {
    display: flex;
    gap: var(--space-xs);
    padding: var(--space-xs);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    position: relative;
    margin: 0 var(--space-md) var(--space-md);
}

.tab-2025 {
    flex: 1;
    padding: 12px 16px;
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    background: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    position: relative;
    z-index: 1;
    transition: color 0.3s;
}

.tab-2025.active {
    color: #000;
}

.tab-indicator-2025 {
    position: absolute;
    top: var(--space-xs);
    bottom: var(--space-xs);
    background: var(--gradient-gold);
    border-radius: var(--radius-md);
    transition: all 0.4s var(--ease-smooth);
    z-index: 0;
    box-shadow: var(--glow-gold);
}

/* ===== 2025 Search Bar ===== */
.search-2025 {
    padding: var(--space-md);
}

.search-input-2025 {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 14px 18px;
    transition: all 0.3s var(--ease-smooth);
}

.search-input-2025:focus-within {
    border-color: var(--border-glow);
    box-shadow: var(--glow-primary);
}

.search-input-2025 svg {
    width: 22px;
    height: 22px;
    color: var(--text-accent);
    flex-shrink: 0;
}

.search-input-2025 input {
    flex: 1;
    background: none;
    border: none;
    font-size: 15px;
    color: var(--text-primary);
    outline: none;
}

.search-input-2025 input::placeholder {
    color: var(--text-muted);
}

/* ===== 2025 Skeleton Loading ===== */
.skeleton-2025 {
    background: linear-gradient(90deg, var(--bg-card) 0%, var(--bg-card-hover) 50%, var(--bg-card) 100%);
    background-size: 200% 100%;
    animation: skeleton 1.5s ease infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeleton {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

.skeleton-text {
    height: 14px;
    margin-bottom: var(--space-sm);
}

.skeleton-title {
    height: 20px;
    width: 60%;
    margin-bottom: var(--space-md);
}

.skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
}

.skeleton-card {
    height: 140px;
    border-radius: var(--radius-xl);
}

/* ===== 2025 Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

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

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }

    to {
        transform: translateY(0);
    }
}

/* Scroll reveal classes */
.reveal-2025 {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s var(--ease-smooth);
}

.reveal-2025.active {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger delays */
.delay-100 {
    transition-delay: 0.1s;
}

.delay-200 {
    transition-delay: 0.2s;
}

.delay-300 {
    transition-delay: 0.3s;
}

.delay-400 {
    transition-delay: 0.4s;
}

.delay-500 {
    transition-delay: 0.5s;
}

/* ===== 2025 Form Elements ===== */
.input-2025 {
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    font-size: 15px;
    color: var(--text-primary);
    outline: none;
    transition: all 0.3s var(--ease-smooth);
}

.input-2025:focus {
    border-color: var(--border-glow);
    box-shadow: var(--glow-primary);
}

.input-2025::placeholder {
    color: var(--text-muted);
}

/* ===== 2025 Progress Bar ===== */
.progress-2025 {
    height: 6px;
    background: var(--bg-card);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar-2025 {
    height: 100%;
    background: var(--gradient-gold);
    border-radius: var(--radius-full);
    position: relative;
    transition: width 1s var(--ease-smooth);
}

.progress-bar-2025::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: progressShine 2s infinite;
}

@keyframes progressShine {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(100%);
    }
}

/* ===== 2025 Badge ===== */
.badge-2025 {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    background: var(--gradient-gold);
    color: #000;
    font-size: 11px;
    font-weight: 700;
    border-radius: var(--radius-full);
    box-shadow: var(--glow-gold);
}

.badge-2025-outline {
    background: transparent;
    border: 1px solid var(--text-gold);
    color: var(--text-gold);
    box-shadow: none;
}

/* ===== 2025 Toast/Notification ===== */
.toast-2025 {
    position: fixed;
    bottom: calc(var(--nav-height) + var(--safe-bottom) + 16px);
    left: 16px;
    right: 16px;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-lg);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-lg);
    transform: translateY(150%);
    transition: transform 0.4s var(--ease-spring);
    z-index: 2000;
}

.toast-2025.show {
    transform: translateY(0);
}

/* ===== Mobile Optimizations ===== */
@media (max-width: 380px) {
    .stats-grid-2025 {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
        padding-left: 8px;
        padding-right: 8px;
    }

    .exam-grid-2025 {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
        padding-left: 8px;
        padding-right: 8px;
    }

    .hero-2025 h1 {
        font-size: 26px;
    }

    .hero-2025 {
        padding-left: 16px;
        padding-right: 16px;
        margin-left: 8px;
        margin-right: 8px;
    }

    .section-header-2025 {
        padding-left: 8px;
        padding-right: 8px;
    }

    .list-2025 {
        margin-left: 8px;
        margin-right: 8px;
    }

    .quick-actions-2025 {
        padding-left: 8px;
        padding-right: 8px;
    }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================= */
/* LEGACY CLASS SUPPORT FOR EXISTING PAGES      */
/* These styles support dashboard, bookmarks,   */
/* profile, and other pages using old classes   */
/* ============================================= */

/* ===== App Hero Section ===== */
.app-hero {
    padding: 24px 16px 28px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.04) 100%);
    border-bottom: 1px solid var(--border-subtle);
    margin: 0 -16px 20px;
}

/* ===== App Stats Row ===== */
.app-stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    padding: 0 16px 16px;
}

@media (max-width: 480px) {
    .app-stats-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== App Stat Card ===== */
.app-stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 16px 12px;
    text-align: center;
    position: relative;
}

.app-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.app-stat-card:nth-child(2)::before {
    background: var(--gradient-gold);
}

.app-stat-card:nth-child(3)::before {
    background: var(--gradient-success);
}

.app-stat-card:nth-child(4)::before {
    background: var(--gradient-purple);
}

.app-stat-card-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
}

.app-stat-card-icon svg {
    width: 22px;
    height: 22px;
}

.app-stat-card h4 {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.app-stat-card p {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
}

/* ===== Quick Actions ===== */
.quick-actions {
    display: flex;
    gap: 10px;
    padding: 12px 16px;
    overflow-x: auto;
    scrollbar-width: none;
}

.quick-actions::-webkit-scrollbar {
    display: none;
}

.quick-action-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
    text-decoration: none;
    transition: all 0.3s var(--ease-smooth);
}

.quick-action-chip:hover {
    border-color: var(--border-glow);
    color: var(--text-accent);
    background: var(--bg-card-hover);
}

.quick-action-chip svg {
    width: 18px;
    height: 18px;
}

/* ===== App Section Header ===== */
.app-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 16px 12px;
}

.app-section-header h2 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.app-section-header h2::before {
    content: '';
    width: 4px;
    height: 18px;
    background: var(--gradient-gold);
    border-radius: 2px;
}

.app-section-header a {
    font-size: 13px;
    color: var(--text-gold);
    font-weight: 600;
    text-decoration: none;
}

/* ===== App List ===== */
.app-list {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    margin: 0 16px 16px;
    overflow: hidden;
}

.app-list-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    border-bottom: 1px solid var(--border-subtle);
    text-decoration: none;
    color: inherit;
    transition: background 0.3s;
}

.app-list-item:last-child {
    border-bottom: none;
}

.app-list-item:hover {
    background: var(--bg-card-hover);
}

.app-list-item-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.app-list-item-icon svg {
    width: 24px;
    height: 24px;
}

.app-list-item-content {
    flex: 1;
    min-width: 0;
}

.app-list-item-content h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.app-list-item-content p {
    font-size: 13px;
    color: var(--text-muted);
}

.app-list-item-meta {
    flex-shrink: 0;
}

.app-list-item-badge {
    display: inline-flex;
    padding: 6px 12px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
}

/* ===== Progress Circle ===== */
.progress-circle {
    position: relative;
    width: 44px;
    height: 44px;
}

.progress-circle svg {
    transform: rotate(-90deg);
}

.progress-circle-bg {
    fill: none;
    stroke: rgba(255, 255, 255, 0.1);
    stroke-width: 3;
}

.progress-circle-fill {
    fill: none;
    stroke-width: 3;
    stroke-linecap: round;
}

.progress-circle-text {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 700;
    color: var(--text-primary);
}

/* ===== App Empty State ===== */
.app-empty-state {
    text-align: center;
    padding: 40px 24px;
    color: var(--text-muted);
}

.app-empty-state svg {
    width: 60px;
    height: 60px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.app-empty-state h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.app-empty-state p {
    font-size: 14px;
    color: var(--text-muted);
}

/* ===== Reveal Animation ===== */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s var(--ease-smooth) forwards;
}

.reveal.delay-1 {
    animation-delay: 0.1s;
}

.reveal.delay-2 {
    animation-delay: 0.2s;
}

.reveal.delay-3 {
    animation-delay: 0.3s;
}

.reveal.delay-4 {
    animation-delay: 0.4s;
}

.reveal.delay-5 {
    animation-delay: 0.5s;
}

/* ===== Premium Glass Card ===== */
.glass-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
}

/* ===== Stat Card Premium ===== */
.stat-card-premium {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 16px;
    text-align: center;
}

.stat-card-premium .stat-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
}

.stat-card-premium .stat-value {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.stat-card-premium .stat-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
}

/* ===== Hero Premium ===== */
.hero-premium {
    padding: 32px 20px;
    text-align: center;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.04) 100%);
    border-bottom: 1px solid var(--border-subtle);
    margin: 0 -16px 20px;
}

.hero-premium h1 {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.hero-premium h1 span {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-premium p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Button Premium ===== */
.btn-premium {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: var(--gradient-gold);
    color: #000;
    font-size: 15px;
    font-weight: 700;
    border-radius: var(--radius-lg);
    text-decoration: none;
    box-shadow: 0 4px 20px rgba(245, 175, 25, 0.3);
    transition: all 0.3s;
}

.btn-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(245, 175, 25, 0.4);
}

/* ===== Exam Grid & Cards (Legacy) ===== */
.exam-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    padding: 0 16px 20px;
}

.exam-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 20px 16px;
    text-align: center;
    text-decoration: none;
    display: block;
    transition: all 0.4s var(--ease-smooth);
    position: relative;
}

.exam-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.2);
}

.exam-card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
}

.exam-card-icon svg {
    width: 28px;
    height: 28px;
}

.exam-card h3 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
    line-height: 1.3;
}

.exam-card p {
    font-size: 12px;
    color: var(--text-muted);
}

/* Exam Card Wrapper & Action Button */
.exam-card-wrapper {
    position: relative;
}

.exam-action-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s;
    background: rgba(102, 126, 234, 0.2);
    color: var(--text-accent);
}

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

.exam-action-btn.exam-action-add {
    background: rgba(102, 126, 234, 0.2);
    color: var(--text-accent);
}

.exam-action-btn.exam-action-remove {
    background: rgba(16, 185, 129, 0.2);
    color: #34d399;
}

.exam-selected {
    border-color: rgba(16, 185, 129, 0.4) !important;
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.15);
}

.exam-selected-badge {
    position: absolute;
    top: -6px;
    left: -6px;
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, #10b981, #059669);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    z-index: 10;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.4);
}

/* ============================================= */
/* ANDROID TOUCH OPTIMIZATIONS                  */
/* Best touch experience for Capacitor APK      */
/* ============================================= */

/* ===== 48dp Minimum Touch Targets ===== */
.btn,
.btn-2025,
.btn-premium,
.card-2025,
.exam-card,
.exam-card-2025,
.list-item-2025,
.app-list-item,
.nav-item-2025,
.tab-2025,
.chip-2025,
.quick-action-chip,
.topic-card,
.chapter-item,
.subject-card,
.quiz-option,
.content-tab,
.bookmark-btn,
.share-btn,
[role="button"],
button {
    min-height: 48px;
    min-width: 48px;
}

/* Prevent iOS zoom on input focus */
input,
textarea,
select {
    font-size: 16px !important;
}

/* Full-row click for list items */
.app-list-item,
.list-item-2025,
.topic-card,
.chapter-item {
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

/* ===== Enhanced Ripple Effect ===== */
.touch-ripple {
    position: relative;
    overflow: hidden;
}

.touch-ripple::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 10%, transparent 10.01%);
    transform: scale(10);
    opacity: 0;
    transition: transform 0.3s, opacity 0.5s;
    pointer-events: none;
}

.touch-ripple:active::after {
    transform: scale(0);
    opacity: 0.3;
    transition: 0s;
}

/* Active state feedback for all clickable elements */
.btn:active,
.btn-2025:active,
.card-2025:active,
.exam-card:active,
.list-item-2025:active,
.app-list-item:active,
.chip-2025:active,
.quick-action-chip:active {
    transform: scale(0.97);
    opacity: 0.9;
}

/* ===== Debounce Loading State ===== */
.btn-loading,
.processing {
    pointer-events: none;
    opacity: 0.7;
    position: relative;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: btn-spin 0.8s linear infinite;
    top: 50%;
    left: 50%;
    margin: -9px 0 0 -9px;
}

@keyframes btn-spin {
    to {
        transform: rotate(360deg);
    }
}

/* ===== Native Exit Toast ===== */
.native-toast {
    position: fixed;
    bottom: calc(var(--nav-height) + var(--safe-bottom) + 24px);
    left: 50%;
    transform: translateX(-50%);
    background: rgba(40, 40, 50, 0.95);
    color: #fff;
    padding: 12px 24px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    z-index: 9999;
    animation: toastIn 0.3s var(--ease-spring);
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ===== GPU-Friendly Animations ===== */
.gpu-accelerate {
    will-change: transform, opacity;
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* Apply to animating elements */
.card-2025,
.exam-card-2025,
.btn-2025,
.reveal-2025 {
    will-change: transform;
}

/* ===== Keyboard Safe Inputs ===== */
.keyboard-safe {
    padding-bottom: env(keyboard-inset-height, 0);
}

/* Input focus scroll fix */
input:focus,
textarea:focus,
select:focus {
    scroll-margin-bottom: 200px;
}

/* ===== Smooth Scroll Optimization ===== */
.scroll-container {
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-y: contain;
}

/* Virtual list optimization */
.virtual-list {
    contain: content;
}

.virtual-list-item {
    contain: layout style;
}

/* ===== Overlay/Modal for Back Button ===== */
.overlay-visible,
.modal-active,
.drawer-open {
    /* These classes help identify open modals for back button */
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

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

.modal-content {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-elevated);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    padding: var(--space-lg);
    transform: translateY(100%);
    transition: transform 0.4s var(--ease-spring);
    z-index: 1001;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-overlay.visible .modal-content {
    transform: translateY(0);
}

/* ===== Pull to Refresh Indicator ===== */
.pull-indicator {
    position: fixed;
    top: calc(var(--header-height) + var(--safe-top) + 10px);
    left: 50%;
    transform: translateX(-50%) translateY(-100%);
    background: var(--gradient-gold);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    z-index: 999;
    transition: transform 0.3s;
}

.pull-indicator.active {
    transform: translateX(-50%) translateY(0);
}

.pull-indicator svg {
    width: 20px;
    height: 20px;
    color: #000;
    animation: pullSpin 0.8s linear infinite;
}

@keyframes pullSpin {
    to {
        transform: rotate(360deg);
    }
}/**
 * ANDROID WEBVIEW SCROLL FIX - CRITICAL
 * THIS FILE MUST BE LOADED LAST!
 * All rules use !important to override any conflicting CSS
 * Version 3.0 - Aggressive Fix
 */

/* ===== FORCE SCROLLING ON HTML/BODY ===== */

html {
    height: auto !important;
    min-height: 100% !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    -webkit-overflow-scrolling: touch !important;
    overscroll-behavior: contain !important;
    scroll-behavior: smooth !important;
    touch-action: manipulation !important;
}

body {
    height: auto !important;
    min-height: 100vh !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    -webkit-overflow-scrolling: touch !important;
    overscroll-behavior-y: contain !important;
    touch-action: pan-y !important;
    position: relative !important;
}

/* ===== MAIN CONTENT AREA - MUST ALLOW SCROLL ===== */

main,
.app-content,
.app-layout,
.app-main-with-sidebar,
[role="main"] {
    overflow-y: visible !important;
    overflow-x: hidden !important;
    -webkit-overflow-scrolling: touch !important;
    touch-action: pan-y pan-x pinch-zoom !important;
    height: auto !important;
    min-height: auto !important;
}

/* ===== REMOVE TOUCH BLOCKING ===== */

/* Allow touch on everything by default */
* {
    touch-action: auto;
}

/* Specific interactive elements can use manipulation */
button,
.btn,
.btn-2025,
.btn-primary,
input[type="submit"],
input[type="button"],
a {
    touch-action: manipulation;
}

/* ===== FIX FIXED ELEMENTS ===== */

/* All pseudo-elements must not block touch */
*::before,
*::after {
    pointer-events: none !important;
}

/* Re-enable for actual content */
button *,
a *,
.btn * {
    pointer-events: auto;
}

/* Body background layer - CRITICAL FIX */
body::before {
    pointer-events: none !important;
    z-index: -100 !important;
}

/* ===== FIXED HEADER/NAV TOUCH FIX ===== */

.app-header,
.premium-header,
.header,
.app-header-2025 {
    pointer-events: auto !important;
    touch-action: none !important;
}

.bottom-nav,
.bottom-nav-2025,
.app-bottom-nav {
    pointer-events: auto !important;
    touch-action: none !important;
}

/* Content inside nav should be clickable */
.app-header *,
.bottom-nav *,
.bottom-nav-2025 * {
    pointer-events: auto !important;
}

/* ===== OVERLAY FIX ===== */

.mobile-menu-overlay:not(.active),
.modal-overlay:not(.active) {
    pointer-events: none !important;
}

.mobile-menu-overlay.active,
.modal-overlay.active {
    pointer-events: auto !important;
}

/* ===== SCROLL CONTAINERS ===== */

.app-list,
.exam-grid,
.exam-grid-2025,
.quick-actions,
.quick-actions-2025,
.stats-grid-2025,
.list-2025 {
    -webkit-overflow-scrolling: touch !important;
}

/* Horizontal scrollable */
.quick-actions,
.quick-actions-2025,
.tabs-2025,
.app-tabs,
.horizontal-scroll {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    scroll-snap-type: x proximity !important;
}

/* ===== CAPACITOR WEBVIEW SPECIFIC ===== */

/* For Android WebView touch handling */
@media (pointer: coarse) {

    html,
    body {
        -webkit-overflow-scrolling: touch !important;
        overflow-y: auto !important;
    }

    .app-content {
        min-height: calc(100vh - 150px) !important;
        padding-bottom: 100px !important;
    }
}

/* ===== MODAL SCROLL LOCK (Only when modal is open) ===== */

body.modal-open,
body.menu-open,
body.no-scroll {
    overflow: hidden !important;
    position: fixed !important;
    width: 100% !important;
    height: 100% !important;
}

/* ===== GPU ACCELERATION ===== */

.app-content,
main,
.scroll-container {
    transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    will-change: scroll-position;
}

/* ===== LOADING OVERLAY FIX ===== */

#pageLoadingBar,
.instant-loading-bar,
.loading-overlay {
    pointer-events: none !important;
}

/* ===== NATIVE TOAST ===== */

.native-toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.9);
    color: #fff;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    z-index: 99999;
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.1);
}