/**
 * AhlulAthar Islamic Studies — Student Portal Design System
 * Modern Islamic Learning Aesthetic with Emerald, Gold, Warm Ivory, Glassmorphism & Micro-animations
 */

:root {
    --primary: #0f3d2e;
    --primary-light: #1b5e46;
    --primary-dark: #09261c;
    --secondary: #d4af37;
    --secondary-light: #f3e5ab;
    --secondary-dark: #997a15;
    
    --accent: #2563eb;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    --bg-main: #f8faf9;
    --bg-card: #ffffff;
    --bg-surface: #f1f5f3;
    
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-muted: #9ca3af;
    --text-inverse: #ffffff;
    
    --border: #e5e7eb;
    --border-light: #f3f4f6;
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px -1px rgba(15,61,46,0.08);
    --shadow-lg: 0 10px 30px -3px rgba(15,61,46,0.12);
    --shadow-xl: 0 20px 40px -4px rgba(15,61,46,0.16);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    --font-urdu: 'Noto Nastaliq Urdu', 'JameelNoori', serif;
    --font-en: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --font-arabic: 'Amiri', 'Traditional Arabic', serif;
    
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global resets & typography */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-en);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* RTL Specific Styles for Urdu */
body.rtl {
    direction: rtl;
    text-align: right;
    font-family: var(--font-urdu);
    line-height: 2.1;
}

body.rtl .font-urdu {
    font-family: var(--font-urdu);
}

body.rtl .urdu-text {
    font-family: var(--font-urdu);
    line-height: 2.1;
}

/* Islamic Geometric Background Ambient */
.bg-islamic-pattern {
    position: relative;
    background-color: var(--primary-dark);
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(212, 175, 55, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 85% 30%, rgba(27, 94, 70, 0.35) 0%, transparent 50%),
        linear-gradient(135deg, #09261c 0%, #0f3d2e 60%, #174d3a 100%);
    color: var(--text-inverse);
}

/* Glassmorphism Cards */
.glass-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: var(--shadow-md);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.glass-card:hover {
    box-shadow: var(--shadow-lg);
}

.glass-card-dark {
    background: rgba(9, 38, 28, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(212, 175, 55, 0.25);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.25);
    border-radius: var(--radius-lg);
    color: #ffffff;
}

/* Modern Islamic Header Bar */
.is-navbar {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.04);
}

.is-navbar .nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.is-navbar .nav-logo {
    height: 44px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.is-nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.is-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
}

.is-nav-link:hover, .is-nav-link.active {
    background: var(--bg-surface);
    color: var(--primary);
}

.is-nav-link.active {
    background: rgba(15, 61, 46, 0.1);
    color: var(--primary);
    font-weight: 700;
}

/* Language Switcher Pill */
.lang-toggle {
    display: inline-flex;
    align-items: center;
    background: #edf2f7;
    border-radius: var(--radius-full);
    padding: 4px;
    border: 1px solid #cbd5e1;
}

.lang-toggle a {
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    color: #475569;
    transition: var(--transition);
}

.lang-toggle a.active {
    background: var(--primary);
    color: #ffffff;
    box-shadow: 0 2px 6px rgba(15, 61, 46, 0.3);
}

/* Islamic Learning Hero Banner */
.portal-hero {
    background: linear-gradient(135deg, #09261c 0%, #0f3d2e 60%, #1b5e46 100%);
    color: #ffffff;
    padding: 48px 0;
    position: relative;
    overflow: hidden;
    border-bottom: 2px solid var(--secondary);
}

.portal-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(#d4af37 0.8px, transparent 0.8px);
    background-size: 24px 24px;
    opacity: 0.08;
    pointer-events: none;
}

.bismillah-badge {
    display: inline-block;
    font-family: var(--font-arabic);
    font-size: 20px;
    color: var(--secondary-light);
    margin-bottom: 12px;
    letter-spacing: 1px;
}

/* Sequential Chapter Stepper Roadmap */
.roadmap-container {
    position: relative;
    padding: 24px 0;
}

.chapter-step-card {
    position: relative;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1.5px solid var(--border);
    padding: 24px;
    margin-bottom: 24px;
    transition: var(--transition);
    overflow: hidden;
}

.chapter-step-card::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 6px;
    background: var(--border);
    transition: var(--transition);
}

body.rtl .chapter-step-card::before {
    right: 0;
}

body:not(.rtl) .chapter-step-card::before {
    left: 0;
}

.chapter-step-card.completed {
    border-color: rgba(16, 185, 129, 0.4);
    background: linear-gradient(135deg, #ffffff 0%, #f0fdf4 100%);
}
.chapter-step-card.completed::before {
    background: var(--success);
}

.chapter-step-card.current {
    border-color: var(--primary);
    box-shadow: 0 8px 24px rgba(15, 61, 46, 0.12);
    background: linear-gradient(135deg, #ffffff 0%, #f7fbf9 100%);
}
.chapter-step-card.current::before {
    background: var(--secondary);
}

.chapter-step-card.locked {
    opacity: 0.65;
    background: #f8fafc;
    border-style: dashed;
}
.chapter-step-card.locked::before {
    background: #cbd5e1;
}

/* Material item list inside chapter */
.material-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    transition: var(--transition);
}

.material-row:hover {
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.material-row.completed {
    background: #f0fdf4;
    border-color: #bbf7d0;
}

/* Exam Card & Timer */
.exam-timer-box {
    background: #fef2f2;
    border: 1.5px solid #fecaca;
    color: #991b1b;
    border-radius: var(--radius-md);
    padding: 10px 18px;
    font-weight: 700;
    font-size: 1.1rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.question-option-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    border-radius: var(--radius-md);
    background: #ffffff;
    border: 1.5px solid var(--border);
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 14px;
}

.question-option-card:hover {
    border-color: var(--primary);
    background: #f7fbf9;
}

.question-option-card.selected {
    border-color: var(--primary);
    background: #f0fdf4;
    box-shadow: 0 0 0 2px rgba(15, 61, 46, 0.15);
}

.question-option-card input[type="radio"] {
    width: 20px;
    height: 20px;
    accent-color: var(--primary);
}

/* Results Gauge & Score Cards */
.score-circle {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px auto;
    font-weight: 800;
    border: 8px solid;
}

.score-circle.pass {
    border-color: var(--success);
    color: #065f46;
    background: #ecfdf5;
}

.score-circle.fail {
    border-color: var(--danger);
    color: #991b1b;
    background: #fef2f2;
}

/* Custom Buttons */
.btn-emerald {
    background: linear-gradient(135deg, #0f3d2e 0%, #1b5e46 100%);
    color: #ffffff !important;
    border: none;
    padding: 12px 28px;
    border-radius: var(--radius-full);
    font-weight: 700;
    box-shadow: 0 4px 14px rgba(15, 61, 46, 0.25);
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-emerald:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(15, 61, 46, 0.35);
    color: #ffffff;
}

.btn-gold {
    background: linear-gradient(135deg, #d4af37 0%, #b89122 100%);
    color: #0f3d2e !important;
    border: none;
    padding: 12px 28px;
    border-radius: var(--radius-full);
    font-weight: 700;
    box-shadow: 0 4px 14px rgba(212, 175, 55, 0.3);
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.45);
}

/* Responsive Footer */
.is-footer {
    background: #09261c;
    color: #cbd5e1;
    padding: 40px 0 24px 0;
    margin-top: auto;
    border-top: 1px solid rgba(212, 175, 55, 0.2);
}

.is-footer a {
    color: #94a3b8;
    text-decoration: none;
    transition: var(--transition);
}

.is-footer a:hover {
    color: var(--secondary-light);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeInUp 0.4s ease forwards;
}

@media (max-width: 768px) {
    .is-nav-links {
        display: none;
    }
    .portal-hero {
        padding: 32px 0;
        text-align: center;
    }
}