/* ==========================================================================
   PM SHRI KV AFS SULUR - High Performance CSS & Animations
   ========================================================================== */

/* --- CSS Theme Variables --- */
:root {
    --primary-color: #1E3A8A;
    --primary-gradient: linear-gradient(135deg, #1E3A8A 0%, #2563EB 100%);
    --primary-hover: #1D4ED8;
    --accent-gold: #F59E0B;
    --accent-glow: rgba(245, 158, 11, 0.25);
    
    --bg-main: #F8FAFC;
    --bg-card: #FFFFFF;
    --bg-header: rgba(255, 255, 255, 0.88);
    --text-main: #0F172A;
    --text-muted: #64748B;
    --border-color: #E2E8F0;
    
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
    --shadow-md: 0 8px 16px -2px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 20px 30px -8px rgba(15, 23, 42, 0.12);
    
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Category Accent Colors */
    --dlms-color: #2563EB;
    --library-color: #059669;
    --reading-color: #7C3AED;
    --council-color: #D97706;
    --exam-color: #0284C7;
    --fee-color: #DC2626;
}

[data-theme="dark"] {
    --primary-color: #3B82F6;
    --primary-gradient: linear-gradient(135deg, #2563EB 0%, #1D4ED8 100%);
    --primary-hover: #60A5FA;
    --accent-gold: #F59E0B;
    --accent-glow: rgba(245, 158, 11, 0.35);
    
    --bg-main: #090D16;
    --bg-card: #151D2A;
    --bg-header: rgba(9, 13, 22, 0.88);
    --text-main: #F8FAFC;
    --text-muted: #94A3B8;
    --border-color: #243042;
    
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.3);
    --shadow-md: 0 8px 20px rgba(0,0,0,0.4);
    --shadow-lg: 0 20px 35px rgba(0,0,0,0.5);
}

/* --- Base & Reset --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* --- Background Animated Glow Orbs --- */
.bg-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(90px);
    z-index: -1;
    pointer-events: none;
    opacity: 0.35;
    animation: glowMove 14s ease-in-out infinite alternate;
}

.glow-1 {
    width: 350px;
    height: 350px;
    background: #2563EB;
    top: -100px;
    left: -100px;
}

.glow-2 {
    width: 400px;
    height: 400px;
    background: #D97706;
    bottom: -150px;
    right: -100px;
    animation-delay: -7s;
}

@keyframes glowMove {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(60px, 80px) scale(1.2); }
}

/* --- Header --- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-header);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1.25rem;
    transition: var(--transition);
}

.header-container {
    max-width: 1240px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pm-shri-tag {
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--accent-gold);
    letter-spacing: 0.06em;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    text-transform: uppercase;
}

.star-icon {
    font-size: 0.75rem;
    animation: spinStar 8s linear infinite;
    display: inline-block;
}

@keyframes spinStar {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.school-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.01em;
}

@media (min-width: 640px) {
    .school-title {
        font-size: 1.35rem;
    }
}

.icon-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.icon-btn:hover {
    transform: scale(1.08) rotate(5deg);
    border-color: var(--primary-color);
    box-shadow: 0 0 12px rgba(37, 99, 235, 0.25);
}

[data-theme="light"] .moon-icon { display: block; }
[data-theme="light"] .sun-icon { display: none; }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="dark"] .sun-icon { display: block; }

/* --- Ticker --- */
.announcement-bar {
    background: var(--primary-gradient);
    color: #FFFFFF;
    padding: 0.45rem 1.25rem;
    font-size: 0.85rem;
    overflow: hidden;
}

.ticker-container {
    max-width: 1240px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.ticker-badge {
    background: var(--accent-gold);
    color: #0F172A;
    font-weight: 800;
    padding: 0.15rem 0.6rem;
    border-radius: 20px;
    font-size: 0.7rem;
    text-transform: uppercase;
    flex-shrink: 0;
}

.ticker-content p {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 500;
}

/* --- Layout Main --- */
.main-content {
    flex: 1;
    max-width: 1240px;
    width: 100%;
    margin: 0 auto;
    padding: 1.5rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* --- Hero Section --- */
.hero-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    display: grid;
    grid-template-columns: 1fr;
    transition: var(--transition);
    position: relative;
}

@media (min-width: 868px) {
    .hero-card {
        grid-template-columns: 1.15fr 1fr;
    }
}

.hero-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(37, 99, 235, 0.3);
}

.hero-image-wrapper {
    position: relative;
    min-height: 240px;
    background: #0F172A;
    overflow: hidden;
}

.hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-card:hover .hero-img {
    transform: scale(1.06);
}

.hero-svg-fallback {
    width: 100%;
    height: 100%;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.75) 0%, transparent 60%);
}

.hero-floating-badge {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(10px);
    color: #FFFFFF;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.4rem 0.85rem;
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.live-dot {
    width: 8px;
    height: 8px;
    background: #10B981;
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    animation: pulseDot 1.5s infinite;
}

@keyframes pulseDot {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-text-content {
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-header-pill {
    display: inline-block;
    align-self: flex-start;
    background: var(--accent-glow);
    color: var(--accent-gold);
    font-weight: 800;
    font-size: 0.7rem;
    padding: 0.25rem 0.65rem;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.6rem;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.hero-text-content h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.75rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 0.6rem;
    color: var(--text-main);
}

.hero-tagline {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
    line-height: 1.5;
}

.quick-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.stat-card {
    background: var(--bg-main);
    padding: 0.6rem 0.5rem;
    border-radius: var(--radius-sm);
    text-align: center;
    border: 1px solid var(--border-color);
}

.stat-num {
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--primary-color);
    display: block;
}

.stat-lbl {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* --- Controls Section (Responsive Search & Filter) --- */
.controls-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@media (min-width: 768px) {
    .controls-section {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.search-box {
    position: relative;
    flex: 1;
    display: flex;
    align-items: center;
}

.search-box svg {
    position: absolute;
    left: 1rem;
    color: var(--text-muted);
}

.search-box input {
    width: 100%;
    padding: 0.8rem 2.8rem 0.8rem 2.8rem;
    font-size: 0.9rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-main);
    transition: var(--transition);
    outline: none;
}

.search-box input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

.clear-btn {
    position: absolute;
    right: 0.85rem;
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--text-muted);
    cursor: pointer;
}

.filter-tabs {
    display: flex;
    gap: 0.4rem;
    overflow-x: auto;
    padding-bottom: 0.2rem;
    -webkit-overflow-scrolling: touch;
}

.filter-tabs::-webkit-scrollbar {
    height: 3px;
}

.filter-tabs::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.tab-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 0.55rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.825rem;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--text-main);
    border-color: var(--primary-color);
}

.tab-btn.active {
    background: var(--primary-gradient);
    color: #FFFFFF;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

/* --- Portals Grid & Animations --- */
.portals-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.section-title-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.section-title-bar h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.25rem;
    font-weight: 800;
}

.results-count {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.portal-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

@media (min-width: 640px) {
    .portal-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .portal-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.portal-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 1rem;
    position: relative;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    overflow: hidden;
}

.portal-card:hover {
    transform: translateY(-6px) scale(1.01);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.portal-card.featured {
    border: 2px solid var(--dlms-color);
}

/* Shimmer overlay effect on hover */
.shimmer-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        60deg,
        transparent 30%,
        rgba(255, 255, 255, 0.12) 50%,
        transparent 70%
    );
    transform: rotate(30deg);
    transition: transform 0.8s ease;
    pointer-events: none;
}

.shimmer-card:hover::after {
    transform: rotate(30deg) translate(20%, 20%);
}

.card-badge {
    position: absolute;
    top: 0.85rem;
    right: 0.85rem;
    font-size: 0.65rem;
    font-weight: 800;
    padding: 0.2rem 0.55rem;
    border-radius: 20px;
    background: rgba(37, 99, 235, 0.12);
    color: var(--dlms-color);
    border: 1px solid rgba(37, 99, 235, 0.3);
    text-transform: uppercase;
}

.coming-soon-badge {
    background: rgba(217, 119, 6, 0.12);
    color: var(--accent-gold);
    border: 1px solid rgba(217, 119, 6, 0.35);
    animation: pulseBadge 2s ease-in-out infinite;
}

.btn-disabled {
    background: var(--bg-main);
    color: var(--text-muted);
    border: 1px dashed var(--border-color);
    cursor: not-allowed;
    opacity: 0.7;
}

.card-icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.portal-card:hover .card-icon-wrapper {
    transform: scale(1.1) rotate(-4deg);
}

.dlms-bg { background: rgba(37, 99, 235, 0.12); color: var(--dlms-color); }
.library-bg { background: rgba(5, 150, 105, 0.12); color: var(--library-color); }
.reading-bg { background: rgba(124, 58, 237, 0.12); color: var(--reading-color); }
.council-bg { background: rgba(217, 119, 6, 0.12); color: var(--council-color); }
.exam-bg { background: rgba(2, 132, 199, 0.12); color: var(--exam-color); }
.fee-bg { background: rgba(220, 38, 38, 0.12); color: var(--fee-color); }

.category-tag {
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: 0.25rem;
}

.card-content h4 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.1rem;
    font-weight: 800;
    margin-bottom: 0.35rem;
    line-height: 1.3;
}

.card-content p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.45;
}

/* Button & Micro-Interactions */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    width: 100%;
    padding: 0.7rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #FFFFFF;
}

.btn-primary:hover {
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.06);
    transform: translateY(-2px);
}

.btn-animated svg {
    transition: transform 0.3s ease;
}

.btn-animated:hover svg {
    transform: translate(3px, -3px);
}

/* --- Social Hub --- */
.social-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.social-title-bar h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.35rem;
    font-weight: 800;
}

.social-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.85rem;
}

@media (min-width: 550px) {
    .social-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .social-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.social-card {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.95rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--bg-main);
    text-decoration: none;
    color: var(--text-main);
    transition: var(--transition);
}

.social-hover-anim:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-md);
}

.social-card.youtube:hover { border-color: #FF0000; background: rgba(255, 0, 0, 0.05); }
.social-card.instagram:hover { border-color: #E4405F; background: rgba(228, 64, 95, 0.05); }
.social-card.facebook:hover { border-color: #1877F2; background: rgba(24, 119, 242, 0.05); }
.social-card.twitter:hover { border-color: var(--text-main); background: rgba(100, 116, 139, 0.05); }

.social-icon-box {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.youtube .social-icon-box { color: #FF0000; background: rgba(255, 0, 0, 0.1); }
.instagram .social-icon-box { color: #E4405F; background: rgba(228, 64, 95, 0.1); }
.facebook .social-icon-box { color: #1877F2; background: rgba(24, 119, 242, 0.1); }
.twitter .social-icon-box { color: var(--text-main); background: rgba(100, 116, 139, 0.1); }

.social-meta {
    flex: 1;
}

.social-meta h4 {
    font-size: 0.9rem;
    font-weight: 800;
}

.social-meta span {
    font-size: 0.725rem;
    color: var(--text-muted);
}

.social-arrow {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-muted);
    transition: var(--transition);
}

.social-card:hover .social-arrow {
    transform: translate(3px, -3px);
    color: var(--primary-color);
}

/* --- Empty Search State --- */
.empty-state {
    text-align: center;
    padding: 2.5rem 1rem;
    background: var(--bg-card);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-md);
}

.empty-icon-anim {
    font-size: 2.25rem;
    margin-bottom: 0.5rem;
    animation: bounce 1.5s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.empty-state h4 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.empty-state p {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

/* --- Keyframe Entrance Animations --- */
.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.delay-1 { animation-delay: 0.12s; }
.delay-2 { animation-delay: 0.24s; }
.delay-3 { animation-delay: 0.36s; }

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

.float-anim {
    animation: float 4s ease-in-out infinite;
}

.float-anim-slow {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

.pulse-anim {
    animation: pulseBadge 2s ease-in-out infinite;
}

@keyframes pulseBadge {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* --- Footer --- */
.site-footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 1.25rem;
    margin-top: auto;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-container {
    max-width: 1240px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: center;
    text-align: center;
}

@media (min-width: 640px) {
    .footer-container {
        flex-direction: row;
        justify-content: space-between;
    }
}

.back-to-top {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
}

.back-to-top:hover {
    transform: translateY(-2px);
}