/* ===========================
   Estilos Globais
   =========================== */

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

:root {
    /* Cores - Modo Claro */
    --bg-primary: #ffffff;
    --bg-secondary: #f5f7fa;
    --text-primary: #1a1a1a;
    --text-secondary: #555555;
    --accent-color: #003d82;
    --accent-light: #0052b3;
    --border-color: #e0e0e0;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
}

/* Modo Escuro */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #1a1a1a;
        --bg-secondary: #2a2a2a;
        --text-primary: #ffffff;
        --text-secondary: #cccccc;
        --accent-color: #0066cc;
        --accent-light: #0080ff;
        --border-color: #404040;
        --shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.5);
    }
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* ===========================
   Container
   =========================== */

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

/* ===========================
   Header
   =========================== */

.header {
    background-color: var(--bg-secondary);
    padding: 20px 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color 0.3s ease;
}

.logo-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo {
    max-width: 250px;
    height: auto;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

/* ===========================
   Hero Section
   =========================== */

.hero {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-text {
    text-align: left;
}

.hero-text h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.2;
}

.hero-text p {
    font-size: 1.25rem;
    opacity: 0.95;
    line-height: 1.4;
    margin-bottom: 30px;
}

.btn-primary {
    display: inline-block;
    background-color: white;
    color: var(--accent-color);
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
    background-color: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-gif {
    max-width: 100%;
    height: auto;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

/* ===========================
   About Section
   =========================== */

.about {
    padding: 80px 0;
    background-color: var(--bg-primary);
}

.about h2 {
    font-size: 2rem;
    margin-bottom: 50px;
    text-align: center;
    color: var(--text-primary);
    font-weight: 700;
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.about-item {
    background-color: var(--bg-secondary);
    padding: 40px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.about-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.about-item h3 {
    color: var(--accent-color);
    font-size: 1.5rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.about-item p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.8;
}

/* ===========================
   Links
   =========================== */

.link-dimale {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 2px solid transparent;
    transition: border-bottom 0.3s ease;
}

.link-dimale:hover {
    border-bottom: 2px solid var(--accent-color);
}

/* ===========================
   Footer
   =========================== */

.footer {
    background-color: var(--accent-color);
    color: white;
    padding: 40px 0;
    text-align: center;
    margin-top: 80px;
}

.footer-link {
    color: white;
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 600;
    transition: opacity 0.3s ease, text-decoration 0.3s ease;
    display: inline-block;
}

.footer-link:hover {
    opacity: 0.9;
    text-decoration: underline;
}

.footer-year {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-top: 15px;
}

/* ===========================
   Responsividade - Tablet
   =========================== */

@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 40px 0;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

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

    .btn-primary {
        font-size: 1rem;
        padding: 12px 30px;
    }

    .about h2 {
        font-size: 1.75rem;
    }

    .about-content {
        gap: 30px;
    }

    .about-item {
        padding: 30px;
    }

    .logo {
        max-width: 180px;
    }
}

/* ===========================
   Responsividade - Mobile
   =========================== */

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .header {
        padding: 15px 0;
    }

    .logo {
        max-width: 150px;
    }

    .hero {
        padding: 40px 0;
    }

    .hero-content {
        padding: 20px 0;
    }

    .hero-text h1 {
        font-size: 1.5rem;
    }

    .hero-text p {
        font-size: 1rem;
    }

    .btn-primary {
        font-size: 0.95rem;
        padding: 12px 25px;
        display: block;
        text-align: center;
        margin-top: 20px;
    }

    .hero-image {
        margin-top: 20px;
    }

    .hero-gif {
        max-width: 150px;
    }

    .about {
        padding: 40px 0;
    }

    .about h2 {
        font-size: 1.5rem;
        margin-bottom: 30px;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .about-item {
        padding: 20px;
    }

    .about-item h3 {
        font-size: 1.25rem;
    }

    .about-item p {
        font-size: 0.95rem;
    }

    .footer {
        padding: 30px 0;
        margin-top: 40px;
    }

    .footer-link {
        font-size: 1.1rem;
    }
}

/* ===========================
   Acessibilidade
   =========================== */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .hero-gif {
        animation: none;
    }
}

/* Focus para acessibilidade de teclado */
a:focus,
button:focus {
    outline: 2px solid var(--accent-light);
    outline-offset: 2px;
}