/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
    --primary-color: #0088cc;
    --primary-light: #e6f3ff;
    --primary-dark: #004052;
    --background: #ffffff;
    --foreground: #1f2937;
    --border-color: #e5e7eb;
    --text-gray: #4b5563;
    --text-gray-dark: #1f2937;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1), 0 5px 10px rgba(0, 0, 0, 0.05);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-gray);
    background: var(--background);
    line-height: 1.6;
}

.spon-packages img{
    max-width: 180px;
    padding: 0 15px;
    margin-bottom: 30px;
}
.container {
    max-width: 80rem;
    margin: 0 auto;
    padding: 0 1rem;
}

/* ============================================
   Header / Navigation
   ============================================ */
.header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: white;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.header-brand {
    flex: 1;
}

.header-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.header-subtitle {
    font-size: 0.75rem;
    color: var(--text-gray);
    margin-top: 0.125rem;
}

.nav {
    display: flex;
    gap: 1.5rem;
    font-size: 0.875rem;
}

.nav-link {
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    color: white;
    padding: 6rem 0;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.hero-overlay-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 136, 204, 0.4) 0%, rgba(0, 136, 204, 0.3) 50%, rgba(0, 102, 153, 0.4) 100%);
    z-index: 1;
}

.hero-blur-1 {
    position: absolute;
    top: 5rem;
    right: 5rem;
    width: 18rem;
    height: 18rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    filter: blur(3rem);
    z-index: 0;
    animation: pulse 4s ease-in-out infinite;
}

.hero-blur-2 {
    position: absolute;
    bottom: 5rem;
    left: 5rem;
    width: 24rem;
    height: 24rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    filter: blur(3rem);
    z-index: 0;
    animation: pulse 4s ease-in-out infinite 0.5s;
}

.hero-content {
    position: relative;
    z-index: 20;
    text-align: center;
    max-width: 56rem;
    padding: 0 1rem;
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1rem;
    animation: fadeIn 0.8s ease-out 0ms forwards;
    opacity: 0;
}

.hero-title {
    font-size: 3rem;
    font-family: cursive;
    font-weight: 900;
    margin-bottom: 1rem;
    line-height: 1.2;
    animation: fadeIn 0.8s ease-out 100ms forwards;
    opacity: 0;
}

.hero-description {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    line-height: 1.3;
    animation: fadeIn 0.8s ease-out 200ms forwards;
    opacity: 0;
}

.hero-code {
    font-size: 1.5rem;
    font-weight: 600;
    font-style: italic;
    color: rgba(255, 255, 255, 0.9);
    margin: 1.5rem 0;
    animation: fadeIn 0.8s ease-out 300ms forwards;
    opacity: 0;
}

.hero-divider {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin: 1.5rem 0;
    animation: fadeIn 0.8s ease-out 400ms forwards;
    opacity: 0;
}

.divider-line {
    height: 0.25rem;
    width: 3rem;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.3);
}

.divider-line.active {
    background: white;
}

.hero-date {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: 'Georgia', serif;
    margin: 1rem 0;
    animation: fadeIn 0.8s ease-out 500ms forwards;
    opacity: 0;
}

.hero-date sup {
    font-size: 0.875rem;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.5rem;
    justify-content: center;
    animation: fadeIn 0.8s ease-out 600ms forwards;
    opacity: 0;
}

@media (min-width: 640px) {
    .hero-buttons {
        flex-direction: row;
    }
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: fadeIn 0.8s ease-out 700ms forwards, bounce 2s ease-in-out infinite 700ms;
    opacity: 0;
    z-index: 20;
}

.scroll-indicator svg {
    width: 1.5rem;
    height: 1.5rem;
    color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
    text-decoration: none;
    font-size: 1rem;
    white-space: nowrap;
}

.btn:hover {
    transform: scale(1.05) translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-light {
    background: white;
    color: var(--primary-color);
}

.btn-light:hover {
    background: #f3f4f6;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    border: 2px solid white;
}

.btn-primary:hover {
    background: #0070a3;
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1.125rem;
}

/* ============================================
   Organizing Departments Section
   ============================================ */
.departments {
    padding: 4rem 0;
    background: white;
    border-bottom: 4px solid var(--primary-color);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 1rem;
}

.section-description {
    text-align: center;
    color: var(--text-gray);
    margin-bottom: 3rem;
    max-width: 32rem;
    margin-left: auto;
    margin-right: auto;
}

.departments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.dept-card {
    padding: 1.5rem;
    background: linear-gradient(135deg, #e6f3ff 0%, white 100%);
    border: 2px solid #b3d9ff;
    border-radius: 0.5rem;
    display: flex;
    gap: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    animation: fadeIn 0.8s ease-out forwards;
    opacity: 0;
}

.dept-card:nth-child(1) {
    animation-delay: 100ms;
}

.dept-card:nth-child(2) {
    animation-delay: 200ms;
}

.dept-card:nth-child(3) {
    animation-delay: 300ms;
}

.dept-card:nth-child(4) {
    animation-delay: 400ms;
}

.dept-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-0.5rem);
}

.dept-icon {
    font-size: 2rem;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.dept-card:hover .dept-icon {
    transform: scale(1.25);
}

.dept-name {
    font-weight: 700;
    color: #0070a3;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.dept-desc {
    font-size: 0.875rem;
    color: var(--text-gray);
    transition: color 0.3s ease;
}

.dept-card:hover .dept-desc {
    color: var(--text-gray-dark);
}

/* ============================================
   About Section
   ============================================ */
.section {
    padding: 4rem 0;
}

.section-white {
    background: white;
}

.section-gray {
    background: #f9fafb;
}

.two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

@media (max-width: 768px) {
    .two-column {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.text-justify {
    text-align: justify;
}

.space-y-4 {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.card {
    padding: 1.5rem;
    background: white;
    border-left: 4px solid var(--primary-color);
    border-radius: 0.25rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.card-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.list-disc {
    list-style: none;
    padding: 0;
}

.list-disc li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.list-disc li::before {
    content: "•";
    color: var(--primary-color);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 0.25rem;
}

/* ============================================
   Themes Section
   ============================================ */
.themes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.theme-card {
    padding: 1rem;
    background: linear-gradient(135deg, #e6f3ff 0%, white 100%);
    border: 1px solid #b3d9ff;
    border-radius: 0.5rem;
    text-align: center;
    color: var(--text-gray-dark);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    animation: fadeIn 0.8s ease-out forwards;
    opacity: 0;
}

.theme-card:nth-child(1) {
    animation-delay: 100ms;
}

.theme-card:nth-child(2) {
    animation-delay: 150ms;
}

.theme-card:nth-child(3) {
    animation-delay: 200ms;
}

.theme-card:nth-child(4) {
    animation-delay: 250ms;
}

.theme-card:nth-child(5) {
    animation-delay: 300ms;
}

.theme-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #d4ecff 0%, #e6f3ff 100%);
}

/* ============================================
   Dates Section
   ============================================ */
.dates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.date-card {
    padding: 1.5rem;
    background: white;
    border-left: 4px solid var(--primary-color);
    border-radius: 0.25rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    animation: fadeIn 0.8s ease-out forwards;
    opacity: 0;
}

.date-card:nth-child(1) {
    animation-delay: 100ms;
}

.date-card:nth-child(2) {
    animation-delay: 200ms;
}

.date-card:nth-child(3) {
    animation-delay: 300ms;
}

.date-card:nth-child(4) {
    animation-delay: 400ms;
}

.date-card:nth-child(5) {
    animation-delay: 500ms;
}

.date-card:nth-child(6) {
    animation-delay: 600ms;
}

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

.date-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.date-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.date-text {
    font-weight: 700;
    color: var(--primary-color);
}

.date-event {
    color: var(--text-gray);
    font-size: 0.9rem;
}

/* ============================================
   Registration Section
   ============================================ */
.registration-table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead tr {
    background: var(--primary-color);
    color: white;
}

th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

tbody tr {
    border-bottom: 1px solid var(--border-color);
}

tbody tr:nth-child(even) {
    background: #f9fafb;
}

td {
    padding: 1rem;
}

tbody tr td:last-child {
    color: var(--primary-color);
    font-weight: 700;
}

.info-box {
    max-width: 50rem;
    margin: 2rem auto;
    padding: 2rem;
    background: #e6f3ff;
    border: 1px solid #b3d9ff;
    border-radius: 0.25rem;
}

.bank-details {
    background: white;
    padding: 1rem;
    border-radius: 0.25rem;
    border: 1px solid #b3d9ff;
    font-size: 0.85rem;
    margin-top: 1rem;
}

.bank-details p {
    margin: 0.25rem 0;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

.contact-card {
    padding: 2rem;
    background: white;
    border-radius: 0.25rem;
    box-shadow: var(--shadow);
}

.contact-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-label {
    font-weight: 700;
    color: var(--text-gray-dark);
    margin-bottom: 0.25rem;
}

.contact-detail {
    font-size: 0.875rem;
    color: var(--text-gray);
    margin: 0.125rem 0;
}

.border-top {
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
    margin-top: 1.5rem;
}

/* ============================================
   Committees Section
   ============================================ */
.committees {
    padding: 4rem 0;
    background: linear-gradient(to bottom, white, #f9fafb);
}

.committee-card {
    margin-bottom: 2rem;
    padding: 2rem;
    border-left: 4px solid;
    border-radius: 0.25rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    animation: fadeIn 0.8s ease-out forwards;
    opacity: 0;
}

.committee-card:nth-child(1) {
    animation-delay: 100ms;
}

.committee-card:nth-child(2) {
    animation-delay: 200ms;
}

.committee-card:nth-child(3) {
    animation-delay: 300ms;
}

.committee-card:nth-child(4) {
    animation-delay: 400ms;
}

.committee-card:nth-child(5) {
    animation-delay: 500ms;
}

.committee-card:nth-child(6) {
    animation-delay: 600ms;
}

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

.committee-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

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

@media (max-width: 768px) {
    .committee-grid {
        grid-template-columns: 1fr;
    }
}

.committee-grid p,
.committee-grid li {
    font-size: 0.875rem;
    text-align: justify;
    line-height: 1.5;
}

.committee-grid li {
    list-style: none;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.committee-grid li::before {
    content: "✓";
    font-weight: 700;
    flex-shrink: 0;
}

/* Color variants */
.committee-primary {
    background: linear-gradient(135deg, #e6f3ff 0%, white 100%);
    border-left-color: var(--primary-color);
}

.committee-primary .committee-title {
    color: var(--primary-color);
}

.committee-primary li::before {
    color: var(--primary-color);
}

.committee-blue {
    background: linear-gradient(135deg, #e0f2fe 0%, white 100%);
    border-left-color: #0ea5e9;
}

.committee-blue .committee-title {
    color: #0284c7;
}

.committee-blue li::before {
    color: #0ea5e9;
}

.committee-amber {
    background: linear-gradient(135deg, #fef3c7 0%, white 100%);
    border-left-color: #f59e0b;
}

.committee-amber .committee-title {
    color: #d97706;
}

.committee-amber li::before {
    color: #f59e0b;
}

.committee-indigo {
    background: linear-gradient(135deg, #e0e7ff 0%, white 100%);
    border-left-color: #6366f1;
}

.committee-indigo .committee-title {
    color: #4f46e5;
}

.committee-indigo li::before {
    color: #6366f1;
}

.committee-emerald {
    background: linear-gradient(135deg, #d1fae5 0%, white 100%);
    border-left-color: #10b981;
}

.committee-emerald .committee-title {
    color: #059669;
}

.committee-emerald li::before {
    color: #10b981;
}

.committee-purple {
    background: linear-gradient(135deg, #f3e8ff 0%, white 100%);
    border-left-color: #a855f7;
}

.committee-purple .committee-title {
    color: #7e22ce;
}

.committee-purple li::before {
    color: #a855f7;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: #111827;
    color: white;
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.footer-section p,
.footer-section a {
    font-size: 0.875rem;
    color: #9ca3af;
    margin-bottom: 0.25rem;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: white;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    text-align: center;
    font-size: 0.875rem;
    color: #6b7280;
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

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

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 640px) {
    .hero-title {
        font-size: 1.875rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .theme-card {
        font-size: 0.85rem;
    }

    th, td {
        padding: 0.75rem;
        font-size: 0.85rem;
    }

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

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

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

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

@media (max-width: 768px) {
    .hero {
        padding: 2rem 0;
    }

    .departments, .section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }

    .section-title {
        font-size: 2.25rem;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.font-bold {
    font-weight: 700;
}

.text-primary {
    color: var(--primary-color);
}

.mt-8 {
    margin-top: 2rem;
}

.text-sm {
    font-size: 0.875rem;
}

.font-semibold {
    font-weight: 600;
}
.logoline {
    display: flex;
    justify-content: center;   /* center the logos */
    align-items: center;
    gap: 20px;                  /* space between logos */
    margin: 20px 0;
}

.logoline img {
    height: 80px;               /* change as per your need */
    object-fit: contain;
}

.chief-speaker-section {
    max-width: 1100px;
    margin: 40px auto;
    padding: 20px;
    text-align: center;
}

/* ====== CHIEF GUEST ====== */
.chief-guest {
    margin-bottom: 50px;
}

.cgprofile-card {
    display: inline-block;
    text-align: center;
}

.cgprofile-card img {
    width: 180px;
    height: 180px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid #ddd;

    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
}

.cgprofile-name {
    font-size: 18px;
    font-weight: 600;
    margin-top: 12px;
}

.cgprofile-designation {
    font-size: 14px;
    color: #555;
    margin-top: 5px;
    line-height: 1.4;
}

/* ====== SPEAKERS GRID ====== */
.cgspeakers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;

    display: -ms-grid;
}

@media (max-width: 992px) {
    .cgspeakers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .cgspeakers-grid {
        grid-template-columns: 1fr;
    }
}

/* ====== SPEAKER CARD ====== */
.cgspeaker-card img {
    width: 160px;
    height: 160px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid #ddd;

    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
}