@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
    --pink: #e83672;
    --pink-light: rgba(232, 54, 114, 0.1);
    --teal: #009cc1;
    --teal-light: #6cc7e1;
    --green: #95bb20;
    --orange: #eb9000;
    --dark: #312f4a;
    --dark-light: #383838;
    --gray: #6c757d;
    --gray-light: #f8f9fa;
    --white: #ffffff;
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== HEADER ===== */
.header {
    background: var(--white);
    border-bottom: 1px solid #e9ecef;
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 24px;
    transition: opacity 0.3s;
}

.logo:hover {
    opacity: 0.8;
}

.logo img {
    height: 120px;
    width: auto;
}

.logo-text {
    font-size: 24px;
    font-weight: 800;
    color: var(--dark);
}

.logo-text span {
    color: var(--pink);
}

.logo-text-wrapper {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.logo-main {
    font-size: 20px;
    font-weight: 800;
    color: var(--dark);
}

.logo-tagline {
    font-size: 11px;
    font-weight: 500;
    color: var(--gray);
    letter-spacing: 0.3px;
}

.logo-main span {
    color: var(--pink);
}

.logo-sub {
    font-size: 14px;
    font-weight: 600;
    color: var(--pink);
}

.nav {
    display: flex;
    gap: 30px;
}

.nav a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s;
}

.nav a:hover {
    color: var(--pink);
}

.nav-cta {
    background: var(--pink) !important;
    color: var(--white) !important;
    padding: 8px 18px;
    border-radius: 8px;
    font-weight: 600 !important;
    font-size: 14px !important;
    transition: background 0.3s, transform 0.2s !important;
}

.nav-cta:hover {
    background: #d02e63 !important;
    color: var(--white) !important;
    transform: translateY(-1px);
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown > a {
    cursor: pointer;
}

.nav-dropdown > a::after {
    content: ' \25BE';
    font-size: 11px;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--white);
    border: 1px solid #e9ecef;
    border-radius: 10px;
    box-shadow: 0 8px 30px rgba(49, 47, 74, 0.12);
    min-width: 220px;
    padding: 8px 0;
    padding-top: 20px;
    margin-top: 0;
    z-index: 100;
}

.dropdown-menu::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid var(--white);
}

.nav-dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-menu a {
    display: block;
    padding: 10px 20px;
    color: var(--dark) !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    transition: background 0.2s, color 0.2s;
}

.dropdown-menu a:hover {
    background: var(--pink-light);
    color: var(--pink) !important;
}

.dropdown-menu .dropdown-city {
    font-size: 12px;
    color: var(--gray);
    display: block;
    margin-top: 2px;
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    background: var(--dark);
    color: var(--white);
    padding: 100px 0 80px;
    overflow: hidden;
    text-align: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--pink) 0%, var(--teal) 50%, var(--green) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
}

.badge {
    display: inline-block;
    background: var(--pink);
    color: var(--white);
    padding: 10px 24px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 30px;
}

.hero h1 {
    font-size: 64px;
    font-weight: 800;
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero h1 .highlight {
    color: var(--teal-light);
}

.hero-subtitle {
    font-size: 22px;
    opacity: 0.9;
    margin-bottom: 40px;
    line-height: 1.6;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    gap: 50px;
    justify-content: center;
    margin-bottom: 40px;
}

.hero-stats .stat {
    text-align: center;
}

.stat-number {
    font-size: 40px;
    font-weight: 800;
    color: var(--teal-light);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    opacity: 0.8;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s;
    text-align: center;
}

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

.btn-primary:hover {
    background: #c42a5e;
    border-color: #c42a5e;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(232, 54, 114, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--dark);
}

.btn-outline {
    background: transparent;
    border-color: var(--white);
    color: var(--white);
    display: inline-block;
    width: auto;
}

.btn-outline:hover {
    background: var(--white);
    color: var(--dark);
}

.btn-block {
    display: block;
    width: 100%;
}

/* ===== SECTIONS ===== */
.section {
    padding: 80px 0;
}

.section-light {
    background: var(--gray-light);
}

.section-dark {
    background: var--(dark);
    color: var(--white);
}

.section-header {
    margin-bottom: 50px;
}

.section-header.center {
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-header h2 .highlight {
    color: var(--pink);
}

.section-subtitle {
    font-size: 18px;
    color: var(--gray);
    line-height: 1.6;
}

/* ===== CITY CARDS (Landing Page) ===== */
.city-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.city-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(49, 47, 74, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 2px solid transparent;
}

.city-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(49, 47, 74, 0.2);
}

.city-card.erlangen { border-color: var(--pink); }
.city-card.erlangen .city-header { background: linear-gradient(135deg, var(--pink) 0%, #c42a5e 100%); }
.city-card.regensburg { border-color: var(--teal); }
.city-card.regensburg .city-header { background: linear-gradient(135deg, var(--teal) 0%, #007a99 100%); }
.city-card.jena { border-color: var(--green); }
.city-card.jena .city-header { background: linear-gradient(135deg, var(--green) 0%, #7a9a1a 100%); }

.city-header {
    color: var(--white);
    padding: 40px 30px;
    text-align: center;
}

.city-name {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 12px;
}

.city-date {
    font-size: 18px;
    opacity: 0.95;
    font-weight: 600;
}

.city-body {
    padding: 30px;
}

.city-info {
    margin-bottom: 20px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-light);
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    font-size: 14px;
    color: var(--gray);
    font-weight: 500;
}

.info-value {
    font-size: 14px;
    font-weight: 700;
    color: var(--dark);
}

.city-cta {
    margin-top: 30px;
}

.city-card .btn-primary {
    display: block;
    width: 100%;
}

.city-card.regensburg .btn-primary {
    background: var(--teal);
    border-color: var(--teal);
}
.city-card.regensburg .btn-primary:hover {
    background: #007a99;
    box-shadow: 0 10px 25px rgba(0, 156, 193, 0.3);
}
.city-card.jena .btn-primary {
    background: var(--green);
    border-color: var(--green);
}
.city-card.jena .btn-primary:hover {
    background: #7a9a1a;
    box-shadow: 0 10px 25px rgba(149, 187, 32, 0.3);
}

/* ===== HIGHLIGHTS SECTION ===== */
.highlights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.highlight-card {
    background: var(--white);
    border-radius: 16px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(49, 47, 74, 0.08);
    border: 1px solid #e9ecef;
    transition: transform 0.3s;
}

.highlight-card:hover {
    transform: translateY(-5px);
}

.highlight-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.highlight-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}

.highlight-card p {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.6;
}

/* ===== VIDEO ===== */
.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    max-width: 800px;
    margin: 0 auto;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* ===== SPEAKER & PROGRAMM ===== */
.speaker-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.speaker-card {
    background: var(--white);
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(49, 47, 74, 0.08);
    border: 1px solid #e9ecef;
    transition: transform 0.3s, box-shadow 0.3s;
}

.speaker-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(49, 47, 74, 0.15);
}

.speaker-image-placeholder {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--pink) 0%, var(--teal) 100%);
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.speaker-initials {
    font-size: 36px;
    font-weight: 800;
    color: var(--white);
}

.speaker-name {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.speaker-role {
    font-size: 14px;
    font-weight: 600;
    color: var(--pink);
    margin-bottom: 12px;
}

.speaker-bio {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.6;
}

.speaker-card.speaker-more {
    border: 2px dashed #e9ecef;
    background: var(--gray-light);
}

.speaker-card.speaker-more .speaker-image-placeholder {
    background: linear-gradient(135deg, var(--gray) 0%, #5a5a5a 100%);
}

.speaker-card.speaker-more .speaker-initials {
    font-size: 24px;
    letter-spacing: 4px;
}

/* Programm */
.program-section {
    background: var(--white);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(49, 47, 74, 0.08);
}

.program-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 30px;
    text-align: center;
}

.program-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-bottom: 24px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #e9ecef;
}

.program-item {
    display: flex;
    gap: 20px;
    align-items: start;
    background: var(--white);
    padding: 18px 24px;
    border-left: 4px solid var(--teal);
    border-bottom: 1px solid #e9ecef;
}

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

.program-item:nth-child(even) {
    background: var(--gray-light);
}

.program-time {
    font-size: 16px;
    font-weight: 700;
    color: var(--teal);
    min-width: 60px;
}

.program-content {
    flex: 1;
}

.program-title-small {
    font-size: 15px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 4px;
}

.program-desc {
    font-size: 13px;
    color: var(--gray);
}

.program-note {
    font-size: 13px;
    color: var(--gray);
    text-align: center;
    font-style: italic;
    margin-top: 20px;
}

/* ===== EVENT INFO BOX ===== */
.event-info-box {
    background: var(--white);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(49, 47, 74, 0.08);
    border: 1px solid #e9ecef;
    max-width: 600px;
    margin: 0 auto;
}

.event-info-box h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 24px;
    text-align: center;
}

.event-info-box .info-row {
    padding: 16px 0;
}

.event-info-box .info-label {
    font-size: 15px;
}

.event-info-box .info-value {
    font-size: 15px;
}

/* ===== CTA SECTION ===== */
.cta-section {
    background: var(--dark);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.cta-section h2 {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 20px;
    opacity: 0.9;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-column h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-column p {
    font-size: 14px;
    line-height: 1.6;
    opacity: 0.9;
}

.footer-column .small {
    font-size: 12px;
    opacity: 0.7;
    margin-top: 8px;
}

.footer-column a {
    color: var(--teal-light);
    text-decoration: none;
    transition: opacity 0.3s;
}

.footer-column a:hover {
    opacity: 0.8;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    opacity: 0.7;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 48px;
    }

    .city-grid,
    .highlights-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .section-header h2 {
        font-size: 32px;
    }

    .nav {
        display: none;
    }

    .cta-section h2 {
        font-size: 32px;
    }
}