/* ===== GOOGLE FONTS ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:opsz,wght@14..32,300;14..32,400;14..32,500;14..32,600;14..32,700;14..32,800&family=Noto+Sans+Devanagari:wght@300;400;500;600;700;800&family=Poppins:wght@400;500;600;700&display=swap');

/* ===== CSS VARIABLES (Vande Bharat Color Scheme) ===== */
:root {
    --primary: #1a237e;        /* Deep navy blue */
    --primary-light: #283593;
    --accent: #ff6f00;         /* Saffron orange */
    --accent-light: #ff8f00;
    --white: #ffffff;
    --off-white: #f8f9ff;
    --gray-light: #e8eaf6;
    --text-dark: #1a1a2e;
    --text-medium: #3949ab;
    --shadow-sm: 0 2px 8px rgba(26,35,126,0.08);
    --shadow-md: 0 8px 32px rgba(26,35,126,0.12);
    --shadow-lg: 0 16px 48px rgba(26,35,126,0.18);
    --glass-bg: rgba(255,255,255,0.85);
    --glass-border: rgba(255,255,255,0.3);
    --glass-shadow: 0 8px 32px rgba(0,0,0,0.1);
    --blur: blur(20px);
    --radius-sm: 1rem;
    --radius-md: 1.5rem;
    --radius-lg: 2rem;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans Devanagari', 'Poppins', 'Inter', sans-serif;
    background: var(--off-white);
    color: var(--text-dark);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* ===== VANDE BHARAT BACKGROUND ===== */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        /* Vande Bharat image overlay */
        linear-gradient(135deg, rgba(26,35,126,0.92) 0%, rgba(26,35,126,0.85) 40%, rgba(255,111,0,0.15) 100%),
        url('https://images.unsplash.com/photo-1569336415962-a4bd9f69c07a?w=1920&q=80') center/cover no-repeat fixed;
    /* Fallback if image doesn't load: gradient */
    background: 
        linear-gradient(135deg, rgba(26,35,126,0.95) 0%, rgba(40,53,147,0.9) 50%, rgba(255,111,0,0.2) 100%);
    z-index: -2;
}

/* Animated overlay pattern */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 40px,
            rgba(255,255,255,0.015) 40px,
            rgba(255,255,255,0.015) 80px
        );
    z-index: -1;
    animation: patternShift 20s linear infinite;
}

@keyframes patternShift {
    0% { background-position: 0 0; }
    100% { background-position: 80px 80px; }
}

/* ===== MAIN CONTAINER ===== */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem 1.5rem 3rem;
    position: relative;
    z-index: 1;
}

/* ===== GLASSMORPHISM HEADER ===== */
.site-header {
    background: var(--glass-bg);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 3rem 2.5rem;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 2.5rem;
    box-shadow: var(--glass-shadow);
    position: relative;
    overflow: hidden;
    animation: fadeSlideDown 0.8s ease-out;
}

@keyframes fadeSlideDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Decorative accent line */
.site-header::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 2px;
}

.site-header h1 {
    font-size: 2.4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.8rem;
    letter-spacing: -0.5px;
}

.site-header p {
    color: var(--text-medium);
    font-size: 1.1rem;
    font-weight: 500;
    opacity: 0.9;
}

.site-header .update-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 2rem;
    margin-top: 1.2rem;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.03); }
}

/* ===== BACK BUTTON ===== */
.back-home {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: var(--glass-bg);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    color: var(--primary);
    padding: 0.8rem 1.6rem;
    border-radius: 3rem;
    text-decoration: none;
    font-weight: 600;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    font-size: 0.95rem;
}

.back-home:hover {
    background: var(--primary);
    color: white;
    transform: translateX(-5px);
    box-shadow: var(--shadow-md);
}

/* ===== DASHBOARD GRID (Glass Cards) ===== */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.dash-card {
    background: var(--glass-bg);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 2.5rem 1.5rem;
    text-align: center;
    text-decoration: none;
    color: var(--primary);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    font-weight: 700;
    font-size: 1.15rem;
    position: relative;
    overflow: hidden;
    animation: fadeSlideUp 0.6s ease-out forwards;
    animation-delay: calc(var(--i, 0) * 0.1s);
    opacity: 0;
}

@keyframes fadeSlideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dash-card:nth-child(1) { --i: 1; }
.dash-card:nth-child(2) { --i: 2; }
.dash-card:nth-child(3) { --i: 3; }
.dash-card:nth-child(4) { --i: 4; }

/* Hover shine effect */
.dash-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s ease;
}

.dash-card:hover::before {
    left: 100%;
}

.dash-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
    background: rgba(255,255,255,0.95);
}

.dash-card .icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 0.8rem;
    transition: var(--transition);
}

.dash-card:hover .icon {
    transform: scale(1.2) rotate(-5deg);
}

.admin-card {
    border: 2px dashed var(--accent);
    background: rgba(255,111,0,0.05);
}

.admin-card:hover {
    background: rgba(255,111,0,0.1);
    border-color: var(--primary);
}

/* ===== DOCUMENT SECTION (Glass) ===== */
.doc-section {
    background: var(--glass-bg);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--glass-shadow);
    animation: fadeSlideUp 0.6s ease-out;
}

.doc-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.4rem 1.2rem;
    border-bottom: 1px solid var(--gray-light);
    flex-wrap: wrap;
    gap: 1rem;
    transition: var(--transition);
    border-radius: var(--radius-sm);
    margin: 0.2rem 0;
}

.doc-item:hover {
    background: rgba(26,35,126,0.03);
}

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

.doc-info {
    font-weight: 600;
    color: var(--text-dark);
    flex: 1;
    min-width: 200px;
}

.doc-date {
    display: block;
    font-weight: 400;
    font-size: 0.85rem;
    color: var(--text-medium);
    margin-top: 0.3rem;
}

/* ===== DOWNLOAD BUTTON ===== */
.download-btn {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: white;
    padding: 0.7rem 1.8rem;
    border-radius: 3rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(255,111,0,0.3);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}

.download-btn:hover::before {
    left: 100%;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255,111,0,0.4);
}

/* ===== INFO PANELS (Glass) ===== */
.info-panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.info-box {
    background: var(--glass-bg);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.info-box:hover {
    box-shadow: var(--shadow-md);
}

.info-box h3 {
    color: var(--primary);
    margin-bottom: 1.2rem;
    font-size: 1.3rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.info-box ul {
    list-style: none;
}

.info-box ul li {
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    color: var(--text-dark);
}

.info-box ul li::before {
    content: "▸";
    color: var(--accent);
    font-weight: bold;
}

/* ===== SUPPORT CARD ===== */
.support-card {
    background: var(--glass-bg);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 1.8rem 2rem;
    margin: 1.5rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.support-card:hover {
    box-shadow: var(--shadow-md);
}

.contact-number {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 3rem;
    font-weight: 700;
    font-size: 1.15rem;
    box-shadow: 0 4px 15px rgba(26,35,126,0.3);
}

/* ===== ADMIN FORM ===== */
.add-doc-form {
    background: var(--glass-bg);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 2px solid var(--primary);
    border-radius: var(--radius-md);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-md);
}

.add-doc-form h2 {
    color: var(--primary);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--text-dark);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.9rem 1.2rem;
    border: 2px solid var(--gray-light);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background: white;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(255,111,0,0.1);
}

.form-group small {
    display: block;
    margin-top: 0.4rem;
    color: var(--text-medium);
    font-size: 0.85rem;
}

.form-group code {
    background: var(--off-white);
    padding: 0.3rem 0.7rem;
    border-radius: 0.5rem;
    font-size: 0.85rem;
    word-break: break-all;
}

.submit-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    border: none;
    padding: 1rem 2.5rem;
    border-radius: 3rem;
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(26,35,126,0.3);
    width: 100%;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(26,35,126,0.4);
}

.submit-btn:active {
    transform: scale(0.98);
}

/* ===== MESSAGE BOXES ===== */
.message-box {
    padding: 1rem 1.5rem;
    border-radius: var(--radius-sm);
    margin: 1rem 0;
    display: none;
    font-weight: 600;
    animation: fadeSlideUp 0.3s ease-out;
}

.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

/* ===== LOADING ===== */
.loading {
    text-align: center;
    padding: 3rem;
    color: var(--text-medium);
    font-size: 1.1rem;
}

.loading::after {
    content: '';
    display: block;
    width: 40px;
    height: 40px;
    margin: 1rem auto 0;
    border: 3px solid var(--gray-light);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ===== FOOTER ===== */
footer {
    text-align: center;
    color: rgba(255,255,255,0.8);
    padding: 2rem 0 1rem;
    font-size: 0.9rem;
    font-weight: 500;
}

footer span {
    opacity: 0.7;
    font-size: 0.85rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .site-header {
        padding: 2rem 1.5rem;
        border-radius: var(--radius-md);
    }
    
    .site-header h1 {
        font-size: 1.6rem;
    }
    
    .info-panels {
        grid-template-columns: 1fr;
    }
    
    .doc-item {
        flex-direction: column;
        align-items: flex-start;
        padding: 1rem;
    }
    
    .download-btn {
        width: 100%;
        justify-content: center;
    }
    
    .dash-card {
        padding: 2rem 1rem;
    }
    
    .support-card {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .dashboard-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.8rem;
    }
    
    .dash-card {
        font-size: 0.9rem;
        padding: 1.5rem 0.8rem;
    }
    
    .dash-card .icon {
        font-size: 2rem;
    }
}