* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #00bcd4;
    --primary-dark: #0097a7;
    --primary-light: #b2ebf2;
    --accent-color: #00e5ff;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-gradient: linear-gradient(135deg, #f8f9fa 0%, #e8f5f7 100%);
    --shadow-sm: 0 2px 8px rgba(0, 188, 212, 0.08);
    --shadow-md: 0 10px 30px rgba(0, 188, 212, 0.12);
    --shadow-lg: 0 20px 50px rgba(0, 188, 212, 0.18);
    --shadow-hover: 0 15px 40px rgba(0, 188, 212, 0.25);
    --border-radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg-gradient);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   SKELETON LOADER STYLES
   ============================================ */
.skeleton-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-gradient);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.skeleton-wrapper.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.skeleton-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 24px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    box-shadow: var(--shadow-md);
}

.skeleton-logo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(90deg, #b2ebf2 25%, var(--accent-color) 50%, #b2ebf2 75%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

.skeleton-header-text {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.skeleton-line {
    height: 20px;
    border-radius: 10px;
    background: linear-gradient(90deg, rgba(255,255,255,0.3) 25%, rgba(255,255,255,0.6) 50%, rgba(255,255,255,0.3) 75%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

.skeleton-line.wide { width: 320px; }
.skeleton-line.medium { width: 200px; }

.skeleton-banner {
    background: var(--white);
    padding: 40px 24px;
    margin: 40px auto;
    max-width: 1200px;
    width: 90%;
    border-radius: 24px;
    box-shadow: var(--shadow-md);
}

.skeleton-batch {
    display: flex;
    align-items: center;
    gap: 24px;
    background: linear-gradient(90deg, #b2ebf2 25%, var(--primary-color) 50%, #b2ebf2 75%);
    background-size: 200% 100%;
    padding: 32px 48px;
    border-radius: 20px;
    animation: shimmer 2s infinite;
}

.skeleton-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: rgba(255,255,255,0.4);
}

.skeleton-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.skeleton-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-bottom: 60px;
}

.skeleton-card {
    background: var(--white);
    border-radius: 24px;
    padding: 48px 32px;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.skeleton-card-icon {
    width: 84px;
    height: 84px;
    border-radius: 20px;
    background: linear-gradient(90deg, #b2ebf2 25%, var(--primary-color) 50%, #b2ebf2 75%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

.skeleton-card-title {
    width: 160px;
    height: 26px;
    border-radius: 12px;
    background: linear-gradient(90deg, #e0e0e0 25%, #f0f0f0 50%, #e0e0e0 75%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

.skeleton-card-desc {
    width: 100%;
    height: 16px;
    border-radius: 8px;
    background: linear-gradient(90deg, #e0e0e0 25%, #f0f0f0 50%, #e0e0e0 75%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
    margin-bottom: 8px;
}

.skeleton-button {
    width: 200px;
    height: 48px;
    border-radius: 50px;
    background: linear-gradient(90deg, var(--primary-color) 25%, var(--primary-dark) 50%, var(--primary-color) 75%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

.loading-text {
    position: fixed;
    bottom: 48px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    z-index: 10000;
}

.loading-message {
    font-size: 1.3rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 12px;
    animation: fadeInOut 2s infinite;
}

.loading-dots {
    font-size: 2rem;
    color: var(--primary-dark);
    letter-spacing: 8px;
}

.loading-dots span {
    animation: bounce 1.4s infinite;
}

.loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.loading-dots span:nth-child(3) { animation-delay: 0.4s; }

/* ============================================
   NAVIGATION BAR
   ============================================ */
.nav-bar {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 188, 212, 0.1);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 700;
    font-size: 1.2rem;
    transition: var(--transition);
}

.nav-brand i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.nav-brand:hover {
    color: var(--primary-color);
    transform: translateX(-2px);
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
    background: var(--primary-light);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 80%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-dark);
    cursor: pointer;
    padding: 8px;
}

.mobile-menu {
    display: none;
    background: var(--white);
    box-shadow: var(--shadow-md);
    position: fixed;
    top: 70px;
    right: 0;
    width: 100%;
    max-width: 300px;
    border-radius: 0 0 0 16px;
    overflow: hidden;
    z-index: 999;
}

.mobile-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    text-decoration: none;
    color: var(--text-dark);
    border-bottom: 1px solid var(--bg-light);
    transition: var(--transition);
}

.mobile-menu a:hover {
    background: var(--primary-light);
    color: var(--primary-dark);
    padding-left: 32px;
}

/* ============================================
   HEADER
   ============================================ */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 32px 0;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.header::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 24px;
}

.logo {
    width: 100px;
    height: 100px;
    object-fit: contain;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.2));
    transition: var(--transition);
}

.logo:hover {
    transform: rotate(360deg) scale(1.1);
}

.header-text {
    text-align: left;
}

.university-name {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.15);
    line-height: 1.2;
}

.tagline {
    font-size: 1.1rem;
    font-weight: 300;
    opacity: 0.95;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* ============================================
   INFO BANNER
   ============================================ */
.info-banner {
    background: var(--white);
    padding: 48px 0;
    box-shadow: var(--shadow-sm);
    margin-bottom: 60px;
}

.batch-info {
    display: flex;
    align-items: center;
    gap: 24px;
    background: linear-gradient(135deg, var(--primary-light) 0%, rgba(0, 188, 212, 0.2) 100%);
    padding: 32px 48px;
    border-radius: 24px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.batch-info::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 0.6s;
}

.batch-info:hover::before {
    left: 100%;
}

.batch-info:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.batch-info i {
    font-size: 3.5rem;
    color: var(--primary-dark);
    animation: pulse 2s ease-in-out infinite;
    filter: drop-shadow(0 4px 8px rgba(0, 188, 212, 0.3));
}

.batch-text h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.batch-text p {
    font-size: 1.05rem;
    color: var(--text-light);
    font-weight: 400;
}

/* ============================================
   SECTIONS
   ============================================ */
.main-content {
    padding: 0 0 80px 0;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--primary-light);
}

.section-header h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 12px;
}

.section-header h2 i {
    color: var(--primary-color);
}

.view-all-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--primary-light);
    color: var(--primary-dark);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
}

.view-all-btn:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateX(4px);
}

/* News Section */
.news-section,
.deadlines-section,
.subjects-section {
    margin-bottom: 64px;
}

.news-grid,
.deadlines-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.news-placeholder,
.deadline-placeholder {
    grid-column: 1 / -1;
    text-align: center;
    padding: 48px;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.news-placeholder i,
.deadline-placeholder i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 16px;
}

/* ============================================
   SUBJECT CARDS
   ============================================ */
.subjects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.subject-card {
    background: var(--white);
    border-radius: 24px;
    padding: 48px 32px;
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    text-align: center;
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
}

.subject-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color), var(--primary-dark));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.subject-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(0, 188, 212, 0.05), transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.subject-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.subject-card:hover::before {
    transform: scaleX(1);
}

.subject-card:hover::after {
    opacity: 1;
}

.card-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, var(--primary-light), rgba(0, 188, 212, 0.3));
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.8rem;
    color: var(--primary-dark);
    transition: all 0.4s ease;
    position: relative;
    z-index: 1;
}

.subject-card:hover .card-icon {
    transform: rotateY(360deg) scale(1.1);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    box-shadow: 0 8px 24px rgba(0, 188, 212, 0.4);
}

.card-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.card-description {
    color: var(--text-light);
    margin-bottom: 28px;
    font-size: 1rem;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 14px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 188, 212, 0.3);
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.card-link::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary-dark), var(--accent-color));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card-link span,
.card-link i {
    position: relative;
    z-index: 1;
}

.card-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 188, 212, 0.4);
}

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

.card-link:hover i {
    transform: translateX(4px);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    color: var(--white);
    text-align: center;
    padding: 40px 0;
    margin-top: auto;
    box-shadow: 0 -10px 30px rgba(0, 188, 212, 0.15);
}

.footer p {
    margin: 8px 0;
    font-size: 1rem;
}

.footer-note {
    font-size: 0.95rem;
    opacity: 0.95;
}

.footer-note i {
    color: #ff6b6b;
    animation: heartbeat 1.5s ease-in-out infinite;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

@keyframes bounce {
    0%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-20px); }
}

@keyframes fadeInOut {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    10%, 30% { transform: scale(0.9); }
    20%, 40% { transform: scale(1.1); }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 968px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    .university-name {
        font-size: 1.4rem;
    }

    .tagline {
        font-size: 0.9rem;
    }

    .logo {
        width: 70px;
        height: 70px;
    }

    .subjects-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .batch-info {
        flex-direction: column;
        text-align: center;
        padding: 24px 32px;
    }

    .batch-info i {
        font-size: 2.8rem;
    }

    .batch-text h2 {
        font-size: 1.4rem;
    }

    .batch-text p {
        font-size: 0.95rem;
    }

    .section-header {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }

    .skeleton-line.wide {
        width: 220px;
    }
    
    .skeleton-line.medium {
        width: 140px;
    }

    .skeleton-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .logo-section {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }

    .header-text {
        text-align: center;
    }

    .university-name {
        font-size: 1.2rem;
    }

    .batch-text h2 {
        font-size: 1.2rem;
    }

    .batch-text p {
        font-size: 0.9rem;
    }

    .card-link {
        padding: 12px 24px;
        font-size: 0.95rem;
    }

    .section-header h2 {
        font-size: 1.5rem;
    }
}

/* ============================================
   NEWS & DEADLINE CARDS FOR HOMEPAGE
   Add this to the end of your styles.css
   ============================================ */

/* News Card on Homepage */
.news-card {
    background: var(--white);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border-left: 4px solid var(--primary-color);
    position: relative;
    overflow: hidden;
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

.news-category {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.news-category.general-update {
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    color: #1976d2;
}

.news-category.urgent {
    background: linear-gradient(135deg, #ffebee, #ffcdd2);
    color: #c62828;
}

.news-category.exam {
    background: linear-gradient(135deg, #f3e5f5, #e1bee7);
    color: #7b1fa2;
}

.news-category.assignment {
    background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
    color: #388e3c;
}

.news-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-excerpt {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 16px;
}

.news-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 1px solid var(--bg-light);
}

.news-date {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-light);
    font-size: 0.85rem;
}

.news-date i {
    color: var(--primary-color);
}

/* Deadline Card on Homepage */
.deadline-card {
    background: var(--white);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border-left: 4px solid var(--primary-color);
    position: relative;
}

.deadline-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

.deadline-priority {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.deadline-priority.priority-high {
    background: linear-gradient(135deg, #ffebee, #ffcdd2);
    color: #c62828;
}

.deadline-priority.priority-medium {
    background: linear-gradient(135deg, #fff3e0, #ffe0b2);
    color: #ef6c00;
}

.deadline-priority.priority-low {
    background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
    color: #388e3c;
}

.deadline-subject-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary-light);
    color: var(--primary-dark);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.deadline-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.deadline-desc {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 16px;
}

.deadline-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 12px;
    border-top: 1px solid var(--bg-light);
}

.deadline-date {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-dark);
    font-size: 0.85rem;
    font-weight: 600;
}

.deadline-date i {
    color: var(--primary-color);
}

.deadline-countdown {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: linear-gradient(135deg, #fff3e0, #ffe0b2);
    color: #ef6c00;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
}

.deadline-countdown.urgent {
    background: linear-gradient(135deg, #ffebee, #ffcdd2);
    color: #c62828;
    animation: pulse 2s ease-in-out infinite;
}

/* Placeholder States */
.news-placeholder,
.deadline-placeholder {
    text-align: center;
    padding: 48px 24px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    color: var(--text-light);
}

.news-placeholder i,
.deadline-placeholder i {
    font-size: 2rem;
    color: var(--primary-light);
    margin-bottom: 12px;
}

/* Responsive */
@media (max-width: 768px) {
    .news-card,
    .deadline-card {
        padding: 20px;
    }

    .news-title,
    .deadline-title {
        font-size: 1.1rem;
    }

    .deadline-footer {
        flex-direction: column;
        align-items: flex-start;
    }
}