/* Variáveis globais de cor, espaçamento e sombras */
:root {
    --bg: #0b1020;
    --surface: #131a31;
    --surface-soft: #1a2342;
    --surface-alt: #1d1f4d;
    --text: #eef2ff;
    --muted: #a7b2d4;
    --line: #2a365f;
    --primary: #4f7cff;
    --primary-dark: #3b63d6;
    --accent: #8b5cf6;
    --accent-soft: #2a2152;
    --shadow: 0 20px 45px rgba(4, 8, 20, 0.4);
    --radius: 18px;
    --container: 1120px;
}

/* Reset base */
* {
    box-sizing: border-box;
}

/* Estrutura geral da página */
body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text);
    background: linear-gradient(180deg, #121933 0%, #0f1730 38%, var(--bg) 100%);
}

/* Elementos base */
a {
    color: inherit;
    text-decoration: none;
}

p,
h1,
h2,
h3 {
    margin-top: 0;
}

/* Container central reutilizável */
.container {
    width: min(calc(100% - 2rem), var(--container));
    margin: 0 auto;
}

/* Cabeçalho e navegação principal */
.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: linear-gradient(180deg, rgba(17, 24, 47, 0.96) 0%, rgba(11, 16, 32, 0.92) 100%);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(42, 54, 95, 0.9);
}

.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.85rem;
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.brand-mark {
    width: 40%;
    height: 48px;
    display: block;
    flex-shrink: 0;
    object-fit: contain;
}

.brand-text {
    color: var(--text);
    line-height: 1;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.site-nav a {
    padding: 0.75rem 1rem;
    border-radius: 999px;
    color: var(--muted);
    transition: background-color 0.2s ease, color 0.2s ease;
}

.site-nav a:hover,
.site-nav a.is-active {
    background: var(--surface-soft);
    color: var(--text);
}

/* Secções hero e topo das páginas internas */
.hero,
.page-hero {
    padding: 5rem 0 2rem;
}

.hero {
    position: relative;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.18) 0%, rgba(79, 124, 255, 0.14) 45%, rgba(19, 26, 49, 0) 72%);
}

.hero::after {
    content: "";
    position: absolute;
    inset: auto 0 0 auto;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(79, 124, 255, 0.1));
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.35fr 0.9fr;
    gap: 2rem;
    align-items: center;
}

/* Tipografia de destaque */
.eyebrow {
    margin-bottom: 1rem;
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
}

h1 {
    font-size: clamp(2.2rem, 5vw, 4.2rem);
    line-height: 1.05;
    margin-bottom: 1rem;
}

h2 {
    font-size: clamp(1.7rem, 3vw, 2.4rem);
    margin-bottom: 1rem;
}

/* Texto auxiliar e descrições */
.hero-text,
.page-intro,
.info-card p,
.footer-content p {
    color: var(--muted);
    line-height: 1.7;
}

/* Botões e ações principais */
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0.85rem 1.4rem;
    border-radius: 999px;
    font-weight: 600;
}

.button.primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
    color: #ffffff;
    box-shadow: 0 12px 30px rgba(79, 124, 255, 0.28);
}

.button.primary:hover {
    background: var(--primary-dark);
}

.button.secondary {
    background: linear-gradient(135deg, rgba(19, 26, 49, 1) 0%, rgba(42, 33, 82, 0.95) 100%);
    border: 1px solid var(--line);
    color: #d8d3ff;
}

/* Cards e blocos de conteúdo */
.hero-card,
.info-card {
    background: var(--surface);
    border: 1px solid rgba(42, 54, 95, 0.95);
    border-radius: var(--radius);
    padding: 1.75rem;
    box-shadow: var(--shadow);
}

.hero-card {
    background: linear-gradient(180deg, rgba(29, 31, 77, 0.98) 0%, rgba(19, 26, 49, 0.98) 100%);
}

.info-card:nth-child(2) {
    background: linear-gradient(180deg, rgba(42, 33, 82, 0.95) 0%, rgba(19, 26, 49, 0.98) 100%);
}

.info-card:nth-child(3) {
    background: linear-gradient(180deg, rgba(26, 35, 66, 0.95) 0%, rgba(19, 26, 49, 0.98) 100%);
}

.info-card h3,
.hero-card h2 {
    color: var(--accent);
}

/* Listas de funcionalidades */
.feature-list {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--muted);
    line-height: 1.8;
}

/* Secções de conteúdo */
.section {
    padding: 2rem 0 5rem;
}

.section-heading {
    max-width: 700px;
    margin-bottom: 2rem;
}

.card-grid,
.contact-layout {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
}

.page-main {
    min-height: calc(100vh - 160px);
}

/* Rodapé */
.site-footer {
    border-top: 1px solid rgba(42, 54, 95, 0.9);
    background: linear-gradient(180deg, rgba(17, 24, 47, 0.96) 0%, rgba(11, 16, 32, 0.92) 100%);
}

.footer-content {
    display: flex;
    justify-content: center;
    gap: 1rem;
    padding: 1.5rem 0;
}

.footer-content p {
    margin-bottom: 0;
}

/* Responsividade */
@media (max-width: 860px) {
    .nav-wrap,
    .footer-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .hero,
    .page-hero {
        padding-top: 3rem;
    }

    .hero-grid,
    .card-grid,
    .contact-layout {
        grid-template-columns: 1fr;
    }

    .site-nav {
        width: 100%;
    }

    .brand-mark {
        width: 42px;
        height: 42px;
    }
}