/**
 * Memorial Petition & Digital Signature Platform - Theme Stylesheet
 */

/* Fonts Import - Primary CDN with swap display for Bengali performance */
@import url('https://fonts.googleapis.com/css2?family=Caveat:wght@600&family=Outfit:wght@300;400;500;600;700&family=Noto+Sans+Bengali:wght@400;500;600;700&family=Noto+Serif+Bengali:wght@400;600;700&family=Inter:wght@400;500;600&display=swap');
/* Fallback: Hind Siliguri for Bengali (lighter, faster loading) */
@import url('https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@400;500;600;700&display=swap');

/* Color Variables */
:root {
    --font-primary: 'Outfit', 'Inter', sans-serif;
    --font-bengali: 'Noto Serif Bengali', serif;
    --font-signature: 'Caveat', cursive;

    /* Light Theme Palette - KYAU Academic Green & Orange-Gold */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --primary: #006a4e;          /* KYAU Dark Forest Green */
    --primary-light: #048259;    /* KYAU Lighter Green */
    --primary-rgb: 0, 106, 78;
    --accent: #f58220;           /* KYAU Warm Gold/Orange */
    --accent-hover: #d36a14;
    --border: #e2e8f0;
    --card-shadow: 0 10px 30px -5px rgba(0, 106, 78, 0.05), 0 8px 15px -6px rgba(0, 106, 78, 0.05);
    --hover-shadow: 0 20px 35px -5px rgba(0, 106, 78, 0.12), 0 10px 15px -5px rgba(245, 130, 32, 0.08);
    
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 16px;

    /* Glassmorphism references */
    --glass-bg: 255, 255, 255;
    --glass-border: 0, 106, 78;
    --glass-border-hover: 245, 130, 32;
}

/* Dark Theme Palette override */
[data-bs-theme="dark"] {
    --bg-primary: #0b0f19;
    --bg-secondary: #111827;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --primary: #10b981;
    --primary-light: #34d399;
    --primary-rgb: 16, 185, 129;
    --accent: #f58220;
    --accent-hover: #fb923c;
    --border: #1f2937;
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
    --hover-shadow: 0 25px 40px -5px rgba(0, 0, 0, 0.5), 0 10px 20px -5px rgba(245, 130, 32, 0.15);
    
    --glass-bg: 17, 24, 39;
    --glass-border: 255, 255, 255;
    --glass-border-hover: 245, 130, 32;
}

/* Base Reset & Core Styles */
body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: var(--transition);
    overflow-x: hidden;
}

/* Bengali Language Support - comprehensive font stack */
body[lang="bn"],
body[lang="bn"] *:not(.fa):not([class*="fa-"]):not([class*="font-"] > i):not(code):not(pre) {
    font-family: 'Noto Sans Bengali', 'Noto Serif Bengali', 'Hind Siliguri', 'SolaimanLipi', 'Kalpurush', 'Vrinda', 'Siyam Rupali', serif !important;
    line-height: 1.9;
    letter-spacing: 0;
}

/* Preserve Latin/icon fonts inside Bengali mode */
body[lang="bn"] .fa,
body[lang="bn"] .fas,
body[lang="bn"] .far,
body[lang="bn"] .fab,
body[lang="bn"] [class^="fa-"],
body[lang="bn"] [class*=" fa-"],
body[lang="bn"] code,
body[lang="bn"] pre,
body[lang="bn"] .font-monospace {
    font-family: inherit !important;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: var(--transition);
}
a:hover {
    color: var(--accent);
}

/* Hero Section with Grid Gradient */
.hero-banner {
    position: relative;
    padding: 7rem 0;
    background: radial-gradient(circle at 15% 25%, rgba(0, 106, 78, 0.95) 0%, rgba(15, 23, 42, 0.98) 80%), 
                url('https://images.unsplash.com/photo-1541339907198-e08756dedf3f?q=80&w=1470') no-repeat center center/cover;
    color: #ffffff;
    border-bottom: 5px solid var(--accent);
    overflow: hidden;
}

.hero-glow-1 {
    position: absolute;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(245, 130, 32, 0.15) 0%, transparent 70%);
    top: -50px;
    right: 5%;
    z-index: 1;
    pointer-events: none;
    animation: float-slow 15s infinite alternate;
}

.hero-glow-2 {
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 106, 78, 0.2) 0%, transparent 70%);
    bottom: -150px;
    left: 15%;
    z-index: 1;
    pointer-events: none;
    animation: float-slow 20s infinite alternate-reverse;
}

@keyframes float-slow {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(40px, 30px) scale(1.15); }
}

.hero-banner .container {
    position: relative;
    z-index: 2;
}

.hero-banner h1 {
    color: #ffffff;
    font-size: 3.25rem;
    line-height: 1.2;
    font-weight: 800;
}

.hero-stats-card {
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--border-radius);
    padding: 2.25rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.hero-stats-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--accent) 0%, var(--primary-light) 100%);
}

.hero-stats-card:hover {
    transform: translateY(-5px);
    border-color: rgba(245, 130, 32, 0.3);
}

/* Premium Card and Elements styling */
.card-premium {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    overflow: hidden;
}

.card-premium:hover {
    box-shadow: var(--hover-shadow);
    transform: translateY(-4px);
}

.card-header-accent {
    border-left: 5px solid var(--primary);
    padding-left: 1.25rem;
    margin-bottom: 2rem;
}

/* Glassmorphism Class utilities */
.glass-card {
    background: rgba(var(--glass-bg), 0.7);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid rgba(var(--glass-border), 0.1);
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    transition: var(--transition);
}

.glass-card:hover {
    box-shadow: var(--hover-shadow);
    transform: translateY(-4px);
    border-color: rgba(var(--glass-border-hover), 0.3);
}

/* Modern buttons with gradients */
.btn-gradient-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #ffffff;
    border: none;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(0, 106, 78, 0.3);
}
.btn-gradient-primary:hover {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 106, 78, 0.4);
    color: #ffffff;
}

.btn-gradient-accent {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
    color: #ffffff;
    border: none;
    font-weight: 700;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(245, 130, 32, 0.35);
}
.btn-gradient-accent:hover {
    background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent) 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 130, 32, 0.45);
    color: #ffffff;
}

/* Tribute Card Styling */
.tribute-card {
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.03) 0%, rgba(245, 130, 32, 0.02) 100%);
    border-left: 6px solid var(--accent) !important;
    border-radius: 6px 20px 20px 6px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}
.tribute-card::after {
    content: "\f10e"; /* FontAwesome Right Quote */
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    bottom: -15px;
    right: 15px;
    font-size: 8rem;
    color: rgba(var(--primary-rgb), 0.04);
    pointer-events: none;
    line-height: 1;
}
.tribute-card:hover {
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.05) 0%, rgba(245, 130, 32, 0.04) 100%);
    transform: translateX(4px);
}

/* Document Reader Frame */
.document-reader {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    padding: 3.5rem;
    position: relative;
    overflow: hidden;
    background-image: 
        radial-gradient(var(--border) 1px, transparent 0),
        radial-gradient(var(--border) 1px, transparent 0);
    background-size: 24px 24px;
    background-position: 0 0, 12px 12px;
}
[data-bs-theme="dark"] .document-reader {
    background-image: none; /* No pattern in dark mode for better readability */
}
.document-reader::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 6px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 50%, var(--primary-light) 100%);
}
.document-seal {
    opacity: 0.85;
    transition: var(--transition);
}
.document-seal:hover {
    transform: rotate(5deg) scale(1.05);
    opacity: 1;
}

/* Live counter pulsing indicator */
.live-pulse-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    background-color: #ef4444;
    border-radius: 50%;
    margin-right: 6px;
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
    animation: pulse-ring 1.5s infinite;
}

@keyframes pulse-ring {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 8px rgba(239, 68, 68, 0);
    }
    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
    }
}

/* Micro interaction utility */
.hover-lift {
    transition: var(--transition);
}
.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--hover-shadow);
}

/* Canvas Signature Area */
.signature-canvas-container {
    position: relative;
    width: 100%;
    height: 200px;
    background-color: #f8fafc;
    border: 2px dashed var(--border);
    border-radius: var(--border-radius);
    overflow: hidden;
}

[data-bs-theme="dark"] .signature-canvas-container {
    background-color: #0f172a;
}

#signature-canvas {
    width: 100%;
    height: 100%;
    cursor: crosshair;
}

/* Typed Signature Area */
.signature-typed-preview {
    font-family: var(--font-signature);
    font-size: 2.75rem;
    color: var(--primary);
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--border);
    border-radius: var(--border-radius);
    background-color: #f8fafc;
    transition: var(--transition);
}

[data-bs-theme="dark"] .signature-typed-preview {
    background-color: #0f172a;
    color: var(--primary-light);
}

/* Progress bar animation */
.progress-premium {
    height: 16px;
    border-radius: 50px;
    background-color: rgba(255, 255, 255, 0.15);
    overflow: hidden;
}

.progress-bar-premium {
    background: linear-gradient(90deg, var(--accent) 0%, var(--primary-light) 100%);
    border-radius: 50px;
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

/* QR Code details container */
#qrcode {
    background-color: #ffffff;
    padding: 1rem;
    border-radius: var(--border-radius);
    display: inline-block;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

/* Committee Team Member Grid */
.committee-member {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background-color: var(--bg-secondary);
    transition: var(--transition);
}

.committee-member:hover {
    border-color: var(--primary-light);
    transform: translateX(4px);
    box-shadow: var(--card-shadow);
}

.committee-member img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

/* Form Steps Navigation */
.step-dot {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--border);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    transition: var(--transition);
}

.step-dot.active {
    background-color: var(--primary);
    color: #ffffff;
    box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.2);
}

.step-dot.completed {
    background-color: var(--success);
    color: #ffffff;
}

/* Table Design */
.table-premium {
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border);
}

.table-premium th {
    background-color: rgba(var(--primary-rgb), 0.05);
    color: var(--text-primary);
    font-weight: 600;
    padding: 1.2rem 1rem;
}

.table-premium tbody tr {
    transition: var(--transition);
}

.table-premium tbody tr:hover {
    background-color: rgba(var(--primary-rgb), 0.02) !important;
}

/* Language and Theme Switcher Floating Buttons */
.controls-floating {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1050;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.btn-floating {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    border: none;
    transition: var(--transition);
}

.btn-floating:hover {
    transform: scale(1.1);
}

/* OTP Code Input style */
.otp-input-group input {
    width: 45px;
    height: 50px;
    font-size: 1.5rem;
    text-align: center;
    border-radius: 8px;
    border: 2px solid var(--border);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: var(--transition);
}

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

/* Debug panel for OTP and Simulation logs */
.debug-otp-panel {
    background-color: #fffbeb;
    border: 1px dashed #f59e0b;
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1rem;
    font-family: monospace;
}

[data-bs-theme="dark"] .debug-otp-panel {
    background-color: #1e1e10;
    border-color: #b45309;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Real-time Toast Alerts */
.toast-container {
    z-index: 1100;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.5s forwards ease-out;
}