@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@400;500;600;700&family=Source+Serif+4:wght@300;400;500;600&display=swap');

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

:root {
    --primary-color: #2D3142;
    --accent-color: #EF8354;
    --accent-light: #4F5D75;
    --dark-bg: #1A1D2E;
    --light-bg: #F5F0E8;
    --off-white: #FAF7F2;
    --warm-bg: #FBF8F3;
    --text-dark: #1A1D2E;
    --text-medium: #4F5D75;
    --text-light: #8B95A5;
    --border-color: #E8E3D8;
    --subtle-accent: #F4E8DC;
}

body {
    font-family: 'Source Serif 4', Georgia, serif;
    line-height: 1.65;
    color: var(--text-dark);
    font-size: 18px;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-weight: 600;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 40px;
}

@media (max-width: 1200px) {
    .container {
        padding: 0 24px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
}

/* Navigation */
.navbar {
    background: rgba(250, 247, 242, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 20px;
}

.logo {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--text-dark);
    letter-spacing: -0.025em;
    text-decoration: none;
}

.logo .year {
    color: var(--text-light);
    font-weight: 400;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    font-family: 'Source Serif 4', Georgia, serif;
    text-decoration: none;
    color: var(--text-medium);
    font-weight: 500;
    font-size: 1rem;
    letter-spacing: -0.01em;
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: var(--text-dark);
}

.btn-register {
    background: var(--text-dark);
    color: white !important;
    padding: 0.65rem 1.75rem;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-size: 0.95rem;
}

.btn-register:hover {
    background: var(--accent-color);
    transform: translateY(-1px);
}

/* Hero Section */
.hero {
    background: var(--text-dark);
    background-image:
        linear-gradient(to bottom, rgba(26, 29, 46, 0.92), rgba(26, 29, 46, 0.95)),
        url('https://images.unsplash.com/photo-1540575467063-178a50c2df87?w=1600&q=80');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 9rem 0 7rem;
    text-align: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(239, 131, 84, 0.04) 0%, transparent 100%);
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 7rem;
    margin-bottom: 1.75rem;
    font-weight: 600;
    letter-spacing: -0.04em;
    line-height: 1.05;
    font-optical-sizing: auto;
}

.subtitle {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 2rem;
    margin-bottom: 2rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.90);
    letter-spacing: -0.02em;
    line-height: 1.4;
}

.event-details {
    font-size: 1.05rem;
    margin-bottom: 3rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 400;
    letter-spacing: 0.01em;
}

.cta-button {
    display: inline-block;
    font-family: 'Source Serif 4', Georgia, serif;
    background: var(--accent-color);
    color: white;
    padding: 1.1rem 2.75rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.0625rem;
    transition: all 0.2s ease;
    letter-spacing: -0.01em;
}

.cta-button:hover {
    transform: translateY(-2px);
    background: #f59367;
    box-shadow: 0 8px 20px rgba(239, 131, 84, 0.25);
}

.cta-button.large {
    font-size: 1.1rem;
    padding: 1.1rem 2.75rem;
}

.sold-out-warning {
    margin-top: 2rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 400;
}

/* About Section */
.about-section {
    padding: 7rem 0;
    background: var(--warm-bg);
}

.about-section h2 {
    font-size: 4rem;
    text-align: center;
    margin-bottom: 1.25rem;
    color: var(--text-dark);
    font-weight: 600;
    letter-spacing: -0.035em;
    line-height: 1.1;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-content p {
    font-size: 1.2rem;
    margin-bottom: 1.75rem;
    color: var(--text-medium);
    line-height: 1.75;
    letter-spacing: -0.015em;
    font-weight: 400;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
}

.stat-item {
    text-align: center;
    padding: 2.5rem 1.5rem;
    background: var(--off-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.stat-item:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.stat-number {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-size: 3.5rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    letter-spacing: -0.03em;
    line-height: 1;
}

.stat-label {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 1rem;
    color: var(--text-light);
    font-weight: 500;
    letter-spacing: -0.005em;
}

/* Speakers Section */
.speakers-section {
    padding: 7rem 0;
    background: var(--light-bg);
}

.speakers-section h2 {
    font-size: 4rem;
    text-align: center;
    margin-bottom: 4rem;
    font-weight: 600;
    letter-spacing: -0.035em;
    line-height: 1.1;
    color: var(--text-dark);
}

.speakers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
    max-width: 1100px;
    margin: 0 auto;
}

.speaker-card {
    background: var(--off-white);
    padding: 2.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
}

.speaker-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent-color);
    box-shadow: 0 12px 24px rgba(0,0,0,0.06);
}

.speaker-image {
    width: 72px;
    height: 72px;
    background: var(--text-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: white;
    margin-bottom: 1.5rem;
    letter-spacing: -0.01em;
}

.speaker-image-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1.5rem;
    border: 3px solid var(--border-color);
}

.speaker-card h3 {
    font-size: 1.625rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--text-dark);
}

.speaker-title {
    font-family: 'Source Serif 4', Georgia, serif;
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: 1rem;
    font-size: 1rem;
    letter-spacing: -0.01em;
}

.speaker-bio {
    font-family: 'Source Serif 4', Georgia, serif;
    color: var(--text-medium);
    font-size: 1.0625rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    letter-spacing: -0.01em;
}

.speaker-talk {
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.95rem;
    color: var(--text-dark);
}

.speaker-talk strong {
    color: var(--text-medium);
    font-weight: 600;
}

/* Schedule Section */
.schedule-section {
    padding: 7rem 0;
    background: var(--warm-bg);
}

.schedule-section h2 {
    font-size: 4rem;
    text-align: center;
    margin-bottom: 4rem;
    font-weight: 600;
    letter-spacing: -0.035em;
    line-height: 1.1;
    color: var(--text-dark);
}

.schedule-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
    max-width: 1100px;
    margin: 0 auto;
}

.day-card {
    background: var(--off-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.2s ease;
}

.day-card:hover {
    border-color: var(--accent-color);
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
}

.day-header {
    background: var(--text-dark);
    color: white;
    padding: 2rem 1.5rem;
    text-align: center;
}

.day-header h3 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
    letter-spacing: -0.025em;
    line-height: 1.2;
}

.date {
    font-size: 1rem;
    opacity: 0.8;
    font-weight: 400;
}

.schedule-list {
    list-style: none;
    padding: 2rem 1.5rem;
}

.schedule-list li {
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    gap: 1rem;
    font-size: 1rem;
}

.schedule-list li:last-child {
    border-bottom: none;
}

.time {
    font-weight: 600;
    color: var(--accent-color);
    min-width: 90px;
    letter-spacing: -0.01em;
}

/* Venue Section */
.venue-section {
    padding: 7rem 0;
    background: var(--light-bg);
}

.venue-section h2 {
    font-size: 4rem;
    text-align: center;
    margin-bottom: 4rem;
    font-weight: 600;
    letter-spacing: -0.035em;
    line-height: 1.1;
    color: var(--text-dark);
}

.venue-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.venue-info h3 {
    font-size: 2.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.address {
    font-size: 1.05rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.venue-info > p {
    line-height: 1.8;
    margin-bottom: 2rem;
    color: var(--text-medium);
}

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

.feature {
    padding: 1rem;
    background: var(--off-white);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-dark);
}

.map-placeholder {
    background: var(--text-dark);
    padding: 4rem 3rem;
    border-radius: 8px;
    text-align: center;
    color: white;
}

.map-placeholder p:first-child {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.map-note {
    color: rgba(255, 255, 255, 0.7);
    margin-top: 1rem;
    font-size: 0.95rem;
}

.venue-image-container {
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.venue-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Sponsors Section */
.sponsors-section {
    padding: 7rem 0;
    background: var(--warm-bg);
}

.sponsors-section h2 {
    font-size: 4rem;
    text-align: center;
    margin-bottom: 1rem;
    font-weight: 600;
    letter-spacing: -0.035em;
    line-height: 1.1;
    color: var(--text-dark);
}

.sponsors-intro {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 4rem;
    font-size: 1.05rem;
}

.sponsor-tier {
    margin-bottom: 3rem;
}

.sponsor-tier h3 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.sponsor-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.sponsor-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 3.5rem;
    background: var(--off-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.2s ease;
    text-decoration: none;
}

.sponsor-logo img {
    max-width: 100%;
    height: auto;
    display: block;
    transition: all 0.2s ease;
}

.platinum .sponsor-logo {
    padding: 3rem 4.5rem;
}

.platinum .sponsor-logo img {
    height: 56px;
    width: auto;
}

.gold .sponsor-logo {
    padding: 2.5rem 3.75rem;
}

.gold .sponsor-logo img {
    height: 44px;
    width: auto;
}

.silver .sponsor-logo {
    padding: 2rem 3rem;
}

.silver .sponsor-logo img {
    height: 36px;
    width: auto;
}

.sponsor-logo:hover {
    transform: translateY(-3px);
    border-color: var(--accent-color);
    box-shadow: 0 12px 24px rgba(0,0,0,0.08);
}

.sponsor-logo:hover img {
    opacity: 0.85;
}

.sponsor-cta {
    text-align: center;
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border-color);
}

.sponsor-cta p {
    color: var(--text-medium);
    margin-bottom: 0.75rem;
}

.sponsor-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
}

.sponsor-link:hover {
    text-decoration: underline;
}

/* CTA Section */
.cta-section {
    padding: 7rem 0;
    background: var(--subtle-accent);
    color: var(--text-dark);
    text-align: center;
}

.cta-section h2 {
    font-size: 4rem;
    margin-bottom: 1rem;
    font-weight: 600;
    letter-spacing: -0.035em;
    line-height: 1.1;
}

.cta-section > p {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    color: var(--text-medium);
    letter-spacing: -0.015em;
}

.pricing-info {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 2.5rem;
    flex-wrap: wrap;
}

.price-item {
    font-size: 1rem;
    color: var(--text-medium);
}

.price-item strong {
    color: var(--text-dark);
}

/* Footer */
footer {
    background: var(--text-dark);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    font-family: 'Cormorant Garamond', Georgia, serif;
    margin-bottom: 1rem;
    color: white;
    font-weight: 600;
    font-size: 1.125rem;
    letter-spacing: -0.015em;
}

.footer-section p {
    font-size: 0.9rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.7);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-section a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-bottom a:hover {
    color: rgba(255, 255, 255, 0.8);
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .nav-links {
        width: 100%;
        flex-wrap: wrap;
        justify-content: flex-start;
        gap: 1rem 1.5rem;
    }

    .btn-register {
        width: 100%;
        text-align: center;
    }

    .hero h1 {
        font-size: 3.25rem;
        letter-spacing: -0.035em;
    }

    .subtitle {
        font-size: 1.5rem;
    }

    .about-section h2,
    .speakers-section h2,
    .schedule-section h2,
    .venue-section h2,
    .sponsors-section h2,
    .cta-section h2 {
        font-size: 2.75rem;
    }

    .nav-links {
        gap: 1rem;
        font-size: 0.9rem;
    }

    .venue-content {
        grid-template-columns: 1fr;
    }

    .venue-features {
        grid-template-columns: 1fr;
    }

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

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

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

    .schedule-list li {
        flex-direction: column;
        gap: 0.35rem;
    }

    .time {
        min-width: auto;
    }
}

@media (max-width: 600px) {
    .hero {
        padding: 6.5rem 0 5rem;
    }

    .hero h1 {
        font-size: 2.75rem;
    }

    .subtitle {
        font-size: 1.25rem;
    }

    .event-details {
        font-size: 0.95rem;
    }

    .cta-button {
        width: 100%;
        max-width: 340px;
    }

    .about-section h2,
    .speakers-section h2,
    .schedule-section h2,
    .venue-section h2,
    .sponsors-section h2,
    .cta-section h2 {
        font-size: 2.25rem;
    }

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

    .speaker-card {
        padding: 1.75rem;
    }

    .speaker-image-photo {
        width: 96px;
        height: 96px;
    }

    .sponsor-logo {
        padding: 1.5rem 2rem;
    }

    .platinum .sponsor-logo {
        padding: 1.75rem 2.25rem;
    }

    .gold .sponsor-logo {
        padding: 1.5rem 2rem;
    }

    .silver .sponsor-logo {
        padding: 1.25rem 1.75rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 6rem 0 4.5rem;
    }

    .hero h1 {
        font-size: 2.4rem;
    }

    .subtitle {
        font-size: 1.15rem;
    }

    .event-details {
        font-size: 0.9rem;
    }

    .speakers-section h2,
    .schedule-section h2,
    .venue-section h2,
    .sponsors-section h2,
    .cta-section h2 {
        font-size: 2.1rem;
    }

    .speaker-bio {
        font-size: 1rem;
    }

    .sponsor-logos {
        gap: 1rem;
    }

    .pricing-info {
        flex-direction: column;
        gap: 1rem;
    }

    .footer-content {
        gap: 2rem;
    }
}