/* Reset e Estilos Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --steam-blue: #1b2838;
    --steam-light-blue: #2a475e;
    --steam-dark: #171a21;
    --steam-accent: #66c0f4;
    --steam-gradient-start: #0c3d5f;
    --steam-gradient-end: #1b2838;
    --text-light: #c7d5e0;
    --text-white: #ffffff;
    --card-bg: #16202d;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-light);
    background: var(--steam-dark);
}

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

/* Header e Navegação */
header {
    background: linear-gradient(135deg, var(--steam-gradient-start), var(--steam-gradient-end));
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

nav {
    padding: 1rem 0;
}

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

.logo h1 {
    color: var(--text-white);
    font-size: 2rem;
    font-weight: bold;
    letter-spacing: 2px;
}

.logo .tagline {
    color: var(--steam-accent);
    font-size: 0.9rem;
    margin-top: -5px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 4px;
}

.nav-links a:hover {
    color: var(--steam-accent);
    background: rgba(102, 192, 244, 0.1);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #0a3251, #1b2838);
    padding: 5rem 0;
    text-align: center;
    border-bottom: 3px solid var(--steam-accent);
}

.hero h2 {
    color: var(--text-white);
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-text {
    color: var(--text-light);
    font-size: 1.3rem;
    max-width: 800px;
    margin: 0 auto;
}

/* Sections */
.section {
    padding: 4rem 0;
}

.section h2 {
    color: var(--text-white);
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
    position: relative;
    padding-bottom: 1rem;
}

.section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: var(--steam-accent);
}

.bg-dark {
    background: var(--steam-blue);
}

/* Timeline */
.timeline {
    position: relative;
    padding: 2rem 0;
    margin: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: var(--steam-accent);
}

.timeline-item {
    display: flex;
    margin: 3rem 0;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-item .year {
    flex: 0 0 100px;
    background: var(--steam-accent);
    color: var(--steam-dark);
    font-size: 1.5rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    width: 100px;
    height: 100px;
    position: relative;
    z-index: 10;
    margin: 0 auto;
}

.timeline-item .content {
    flex: 1;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    margin: 0 2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.timeline-item .content:hover {
    transform: translateY(-5px);
}

.timeline-item .content h3 {
    color: var(--steam-accent);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* Founders */
.founders {
    margin-top: 4rem;
}

.founders h3 {
    color: var(--text-white);
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2rem;
}

.founders-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.founder-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    border-left: 4px solid var(--steam-accent);
}

.founder-card h4 {
    color: var(--steam-accent);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(102, 192, 244, 0.3);
    border-color: var(--steam-accent);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: var(--text-white);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-card {
    background: linear-gradient(135deg, var(--card-bg), var(--steam-light-blue));
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    border: 2px solid var(--steam-accent);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: scale(1.05);
}

.stat-number {
    color: var(--steam-accent);
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-white);
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.stat-desc {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Global Reach */
.global-reach {
    margin-top: 4rem;
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 8px;
}

.global-reach h3 {
    color: var(--steam-accent);
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2rem;
}

.countries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.country-card {
    background: var(--steam-light-blue);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--steam-accent);
}

.country-card h4 {
    color: var(--text-white);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.language-note {
    text-align: center;
    margin-top: 2rem;
    padding: 1rem;
    background: var(--steam-light-blue);
    border-radius: 8px;
    font-size: 1.1rem;
}

/* Impact Content */
.impact-content {
    display: grid;
    gap: 2rem;
    margin-top: 3rem;
}

.impact-item {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    border-left: 4px solid var(--steam-accent);
    transition: transform 0.3s ease;
}

.impact-item:hover {
    transform: translateX(10px);
}

.impact-item h3 {
    color: var(--steam-accent);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* Future Content */
.future-content {
    max-width: 900px;
    margin: 0 auto;
}

.future-content p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.quote {
    background: var(--card-bg);
    padding: 2rem;
    border-left: 4px solid var(--steam-accent);
    margin: 2rem 0;
    font-style: italic;
}

.quote p {
    color: var(--text-white);
    font-size: 1.3rem;
}

/* Footer */
footer {
    background: var(--steam-dark);
    border-top: 3px solid var(--steam-accent);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--steam-accent);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

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

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

.footer-section a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--steam-light-blue);
    color: var(--text-light);
}

/* Responsividade */
@media (max-width: 768px) {
    nav .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .hero h2 {
        font-size: 2rem;
    }

    .hero-text {
        font-size: 1.1rem;
    }

    .section h2 {
        font-size: 2rem;
    }

    .timeline::before {
        left: 30px;
    }

    .timeline-item {
        flex-direction: column !important;
        padding-left: 80px;
    }

    .timeline-item .year {
        position: absolute;
        left: 0;
        width: 60px;
        height: 60px;
        font-size: 1rem;
    }

    .timeline-item .content {
        margin: 0;
    }

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

    .stat-number {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 1.5rem;
    }

    .hero h2 {
        font-size: 1.5rem;
    }

    .section {
        padding: 2rem 0;
    }
}