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

html {
    scroll-behavior: smooth;
}

:root {
    --primary-blue: #2563eb;
    --primary-orange: #ff6b35;
    --dark-bg: #0a0a0a;
    --dark-surface: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #e5e7eb;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --bg-light: #f9fafb;
    --border-color: #e5e7eb;
    --accent-blue: #3b82f6;
    --body-text-size: 1.275rem;
}

body {
    font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-color);
}

.page-light {
    background-color: #f5f7fb;
    color: #0f172a;
}

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

.navbar {
    background-color: var(--dark-bg);
    padding: 1.25rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.nav-brand .brand-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s ease;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-link:hover {
    opacity: 0.7;
}

.nav-link-doc {
    font-weight: 700;
    background-color: rgba(59, 130, 246, 0.2);
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
}

.nav-link--has-news::after {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background-color: #ef4444;
    display: inline-block;
    box-shadow: 0 0 0 2px rgba(15, 23, 42, 0.7);
    position: relative;
    top: -1px;
}

.nav-item-dropdown {
    position: relative;
}

.nav-item-dropdown > .nav-link {
    cursor: default;
}

.nav-item-highlight > .nav-link {
    background-color: rgba(255, 255, 255, 0.12);
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
}

.nav-dropdown-menu {
    position: absolute;
    right: 0;
    top: 120%;
    min-width: 220px;
    background-color: #0b1120;
    border-radius: 8px;
    padding: 0.5rem 0;
    box-shadow: 0 10px 40px rgba(15, 23, 42, 0.7);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-4px);
    transition: opacity 0.15s ease, transform 0.15s ease;
    z-index: 150;
}

.nav-item-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.nav-dropdown-link {
    display: block;
    padding: 0.4rem 1rem;
    color: #e5e7eb;
    text-decoration: none;
    font-size: 0.9rem;
    white-space: nowrap;
}

.nav-dropdown-link small {
    font-size: 0.8rem;
    color: #9ca3af;
}

.nav-dropdown-link:hover {
    background-color: rgba(55, 65, 81, 0.9);
}

.hero {
    background-color: var(--dark-bg);
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
    min-height: calc(100vh - 72px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: 0;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(180deg, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.8) 100%);
    z-index: 1;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.08) 0%, transparent 55%);
    opacity: 0.9;
}

.hero .container {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 6rem 20px 8rem;
}

.hero-title {
    font-size: 5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    line-height: 1.1;
    color: #f7b267;
    text-shadow: 0 0 30px rgba(247, 178, 103, 0.35);
    background-color: rgba(128, 128, 128, 0.45);
    padding: 0.5rem 1.5rem;
    border-radius: 12px;
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.75rem;
    font-weight: 400;
    margin-bottom: 3.5rem;
    color: var(--text-primary);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1.25rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 1rem;
    letter-spacing: 0.5px;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

.btn-news {
    background-color: var(--primary-orange);
    color: var(--text-primary);
}

.btn-news:hover {
    background-color: #ff8555;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 107, 53, 0.4);
}

.hero-banner {
    background-color: var(--primary-blue);
    padding: 1.25rem 0;
    position: relative;
    z-index: 2;
    margin-top: auto;
}

.hero-banner .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.banner-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 1rem;
}

.banner-icon {
    font-size: 1.25rem;
}

.banner-text {
    font-size: 1rem;
}

.btn-banner {
    background-color: rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
    padding: 0.625rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 0.95rem;
    backdrop-filter: blur(10px);
}

.btn-banner:hover {
    background-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.main-content {
    padding: 5rem 0;
    background-color: #f5f7fb;
    font-size: var(--body-text-size);
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto 5rem;
    font-size: inherit;
    line-height: 1.9;
    color: var(--text-dark);
}

.intro-text {
    margin-bottom: 1.75rem;
}

.content-wrapper p {
    margin-bottom: 1.75rem;
    text-align: justify;
}

.content-wrapper strong {
    color: var(--text-dark);
    font-weight: 600;
}

.timeline-section {
    margin: 1rem 0;
    padding: 1.5rem 0 0.5rem;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
    letter-spacing: -0.01em;
    scroll-margin-top: 96px;
}

.timeline {
    list-style: none;
    max-width: 900px;
    margin: 0 auto;
}

.timeline li {
    padding: 0.4rem 0;
    font-size: inherit;
    color: var(--text-dark);
    text-align: justify;
    padding-left: 2rem;
    margin-bottom: 0;
    position: relative;
    border-left: none;
    line-height: 1.4;
}

.timeline li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-size: 1.5rem;
    line-height: 1;
}

.timeline li:last-child {
    margin-bottom: 0;
}

.timeline li strong {
    color: var(--primary-blue);
    font-weight: 600;
}

.scenarios-section {
    margin: 5rem 0;
    padding: 2rem 0;
}

.scenario-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.team-section {
    margin: 5rem 0;
    padding: 3rem 0 2rem;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 2.5rem 2rem;
    margin-top: 2.5rem;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.team-member {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.member-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin-bottom: 1rem;
    overflow: hidden;
    position: relative;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.member-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-orange));
}

.member-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.member-name {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.35rem;
    font-size: 1rem;
}

.member-affiliation {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.4;
}

.contact-section {
    margin: 5rem 0;
    padding: 3rem 0 2rem;
}

.contact-section p {
    margin-bottom: 1.25rem;
    font-size: inherit;
    color: var(--text-dark);
    text-align: justify;
}

.link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.link:hover {
    color: var(--accent-blue);
    text-decoration: underline;
}

.sponsors-section {
    margin: 5rem 0;
    padding: 3rem 0 2rem;
}

.sponsors-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 2.5rem;
    color: var(--text-dark);
}

.sponsors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
    align-items: center;
}

.sponsor-logo {
    height: 100px;
    background-color: var(--bg-light);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.sponsor-logo:hover {
    border-color: var(--border-color);
    background-color: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.footer {
    background-color: var(--bg-light);
    padding: 2.5rem 0;
    text-align: center;
    color: var(--text-light);
    margin-top: 5rem;
}

.footer p {
    font-size: 0.9rem;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .hero {
        min-height: calc(100vh - 64px);
    }

    .hero-title {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.3rem;
    }

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

    .btn {
        width: 100%;
        max-width: 280px;
        text-align: center;
    }

    .nav-links {
        gap: 1.5rem;
    }

    .hero-banner .container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .team-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 2rem 1.5rem;
    }

    .member-avatar {
        width: 90px;
        height: 90px;
    }

    .sponsors-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .content-wrapper {
        font-size: 1.05rem;
    }
}

@media (max-width: 480px) {
    .hero {
        min-height: calc(100vh - 60px);
    }

    .hero .container {
        padding: 3rem 20px 6rem;
    }

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

    .hero-subtitle {
        font-size: 1.1rem;
        margin-bottom: 2.5rem;
    }

    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        width: 100%;
        justify-content: center;
    }

    .team-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem 1rem;
    }

    .member-avatar {
        width: 80px;
        height: 80px;
    }

    .member-name {
        font-size: 0.9rem;
    }

    .member-affiliation {
        font-size: 0.8rem;
    }
}