/* ============================================================
   LAP UNEB — Design System (override Bootstrap 5)
   Tema: Paleontológico / Terroso
   Inspiração: semiárido baiano, fósseis, estratos geológicos
   ============================================================
   Este CSS é carregado DEPOIS do Bootstrap 5 e apenas:
     1. Sobrescreve os design tokens (cores primárias, fonts)
     2. Adiciona classes utilitárias .hero, .timeline, .navbar-lap,
        .footer-lap, .artifact-card, .section-title
     3. Personaliza componentes Bootstrap (.btn-lap, .card-header,
        .alert) sem conflitar
   ============================================================ */

:root,
[data-bs-theme=light] {
    /* Escala de fósseis (cinzas terrosos) */
    --fossil-50:  #FAF7F2;
    --fossil-100: #F0E8D8;
    --fossil-200: #E6D5B8;
    --fossil-300: #D4C5A9;
    --fossil-400: #B8A580;
    --fossil-500: #8B7355;
    --fossil-600: #6E5A42;
    --fossil-700: #5C4A33;
    --fossil-800: #3D3022;
    --fossil-900: #2B2018;

    /* Terracota — acento primário (botões, CTAs, links) */
    --terracotta-300: #E89379;
    --terracotta-500: #C25E3B;
    --terracotta-600: #A04A2C;
    --terracotta-700: #7F3A20;

    /* Ocre — destaque secundário */
    --ochre-300: #E8C97A;
    --ochre-500: #D4A547;
    --ochre-700: #9E7A2F;

    /* Verde fóssil — sucesso */
    --fossil-green-300: #8FB89E;
    --fossil-green-500: #5C8A6F;
    --fossil-green-700: #3D5C4A;

    /* Areia — para áreas de destaque suave */
    --sand-200: #E6D5B8;
    --sand-300: #D4C5A9;

    /* Espaço (escala 4px) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-8: 3rem;
    --space-10: 4rem;

    /* Tipografia */
    --font-display: "Cormorant Garamond", Georgia, serif;
    --font-body:    "Inter", "Open Sans", system-ui, -apple-system, sans-serif;
    --font-mono:    "JetBrains Mono", "Fira Code", monospace;

    /* Sombras quentes (luz do semiárido) */
    --shadow-sm: 0 1px 2px rgba(43, 32, 24, 0.06), 0 1px 3px rgba(43, 32, 24, 0.10);
    --shadow-md: 0 2px 4px rgba(43, 32, 24, 0.08), 0 4px 6px rgba(43, 32, 24, 0.12);
    --shadow-lg: 0 10px 20px rgba(43, 32, 24, 0.12), 0 6px 6px rgba(43, 32, 24, 0.10);

    /* Bordas */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* Tipografia escalável */
    --text-xs:   0.75rem;
    --text-sm:   0.875rem;
    --text-base: 1rem;
    --text-xl:   1.25rem;
    --text-5xl:  3rem;
    --text-6xl:  3.75rem;

    /* === OVERRIDE BOOTSTRAP === */
    --bs-body-font-family: var(--font-body);
    --bs-body-color: var(--fossil-800);
    --bs-body-bg: var(--fossil-50);
    --bs-primary: var(--terracotta-500);
    --bs-primary-rgb: 194, 94, 59;
    --bs-success: var(--fossil-green-500);
    --bs-success-rgb: 92, 138, 111;
    --bs-warning: var(--ochre-500);
    --bs-warning-rgb: 212, 165, 71;
    --bs-link-color: var(--terracotta-600);
    --bs-link-hover-color: var(--terracotta-700);
    --bs-border-color: var(--fossil-200);
    --bs-border-radius: var(--radius-md);
    --bs-border-radius-sm: var(--radius-sm);
    --bs-border-radius-lg: var(--radius-lg);
    --bs-font-sans-serif: var(--font-body);
    --bs-heading-font-family: var(--font-display);
    --bs-heading-color: var(--fossil-900);
}

/* === BASE — overrides Bootstrap === */
body {
    font-family: var(--font-body);
    color: var(--fossil-800);
    background-color: var(--fossil-50);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-family: var(--font-display);
    color: var(--fossil-900);
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.2;
}

h1, .h1 { font-size: 2.75rem; }
h2, .h2 { font-size: 2.125rem; }
h3, .h3 { font-size: 1.625rem; }
h4, .h4 { font-size: 1.375rem; }
h5, .h5 { font-size: 1.125rem; }
h6, .h6 { font-size: 1rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--fossil-700); }

a {
    color: var(--terracotta-600);
    text-decoration: none;
    transition: color 0.2s ease, border-color 0.2s ease;
}
a:hover { color: var(--terracotta-700); text-decoration: underline; }

code, kbd, pre, samp {
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: var(--fossil-700);
}

/* === COMPONENTES — APENAS classes que começam com .lap- ou são específicas === */

/* Botão LAP — variante própria (além de .btn-primary do Bootstrap) */
.btn-lap {
    color: #fff;
    background-color: var(--terracotta-500);
    border-color: var(--terracotta-500);
    font-weight: 500;
    letter-spacing: 0.01em;
    box-shadow: var(--shadow-sm);
}
.btn-lap:hover, .btn-lap:focus {
    color: #fff;
    background-color: var(--terracotta-600);
    border-color: var(--terracotta-600);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.btn-lap-outline {
    color: var(--terracotta-600);
    border-color: var(--terracotta-500);
    background-color: transparent;
    font-weight: 500;
}
.btn-lap-outline:hover, .btn-lap-outline:focus {
    color: #fff;
    background-color: var(--terracotta-500);
    border-color: var(--terracotta-500);
}

.btn-lap-ochre {
    color: var(--fossil-900);
    background-color: var(--ochre-500);
    border-color: var(--ochre-500);
}
.btn-lap-ochre:hover, .btn-lap-ochre:focus {
    color: #fff;
    background-color: var(--ochre-700);
    border-color: var(--ochre-700);
}

/* Variante ghost (link disfarçado de botão) */
.btn-ghost {
    background: transparent;
    border: 0;
    color: var(--terracotta-600);
    font-weight: 500;
    padding: 0.375rem 0;
}
.btn-ghost:hover, .btn-ghost:focus {
    color: var(--terracotta-700);
    text-decoration: underline;
    background: transparent;
}

/* Cards Bootstrap — só adiciona sombra e borda padrão do tema (não substitui) */
.card {
    background-color: #fff;
    border-color: var(--fossil-200);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover {
    box-shadow: var(--shadow-md);
}
.card-header {
    background-color: var(--fossil-50);
    border-bottom-color: var(--fossil-200);
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--fossil-800);
}
.card-title {
    color: var(--fossil-900);
    font-family: var(--font-display);
    font-weight: 600;
}

/* Badges de categoria de achado (não substitui .badge do Bootstrap) */
.badge.badge-fossil  { background-color: var(--fossil-500);          color: #fff; }
.badge.badge-ceramic { background-color: var(--terracotta-500);     color: #fff; }
.badge.badge-lithic  { background-color: var(--ochre-500);          color: var(--fossil-900); }
.badge.badge-osseous { background-color: var(--fossil-700);         color: var(--fossil-50); }
.badge.badge-organic { background-color: var(--fossil-green-500);   color: #fff; }

/* Badge outline customizada */
.badge.badge-outline {
    background-color: transparent;
    border: 1px solid var(--fossil-400);
    color: var(--fossil-700);
    padding: 0.4em 0.8em;
    font-weight: 500;
    letter-spacing: 0.04em;
}

/* === COMPONENTES ESPECÍFICOS LAP === */

/* Navbar / Header — usa classes próprias, não .navbar do Bootstrap */
.navbar-lap {
    background-color: rgba(43, 32, 24, 0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--fossil-50);
    border-bottom: 2px solid var(--terracotta-500);
    padding: var(--space-3) 0;
}
.navbar-lap .navbar-brand,
.navbar-lap .nav-link {
    color: var(--fossil-50);
    font-weight: 500;
    transition: color 0.2s ease;
}
.navbar-lap .nav-link:hover {
    color: var(--ochre-300);
}

/* Compatibilidade: .navbar (usado no landing) também recebe o tema */
.navbar {
    background-color: rgba(43, 32, 24, 0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--fossil-50);
    border-bottom: 2px solid var(--terracotta-500);
    padding: var(--space-3) 0;
}
.navbar .navbar-brand,
.navbar .nav-link,
.navbar-inner,
.navbar-nav a,
.navbar-link {
    color: var(--fossil-50) !important;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.2s ease;
}
.navbar .nav-link:hover,
.navbar-nav a:hover,
.navbar-link:hover {
    color: var(--ochre-300) !important;
    text-decoration: none;
}
.navbar .navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: 1.25rem;
}
.navbar .navbar-brand img {
    height: 36px;
    width: auto;
}

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--fossil-800) 0%, var(--fossil-700) 100%);
    color: var(--fossil-50);
    padding: var(--space-10) 0;
    position: relative;
    overflow: hidden;
}
.hero h1 {
    color: var(--fossil-50);
    font-size: 3.25rem;
    line-height: 1.1;
}
.hero .lead {
    color: var(--fossil-200);
    font-size: 1.25rem;
    max-width: 60ch;
}

/* Seções */
section {
    padding: var(--space-8) 0;
}
.section-title {
    border-left: 4px solid var(--terracotta-500);
    padding-left: var(--space-4);
    margin-bottom: var(--space-6);
}
.section-title h2 {
    margin: 0;
    color: var(--fossil-900);
}

/* Timeline (linha do tempo histórica) */
.timeline {
    position: relative;
    padding-left: var(--space-6);
    border-left: 2px solid var(--fossil-300);
}
.timeline-item {
    position: relative;
    padding-bottom: var(--space-6);
}
.timeline-item::before {
    content: "";
    position: absolute;
    left: calc(-1 * var(--space-6) - 7px);
    top: 0.5rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--terracotta-500);
    border: 2px solid var(--fossil-50);
    box-shadow: 0 0 0 2px var(--terracotta-500);
}
.timeline-year {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--terracotta-600);
    font-weight: 600;
}

/* Cards de artefato */
.artifact-card {
    background: #fff;
    border: 1px solid var(--fossil-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.artifact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.artifact-card .artifact-image {
    width: 100%;
    height: 220px;
    background-color: var(--fossil-100);
    object-fit: cover;
}
.artifact-card .artifact-meta {
    padding: var(--space-4);
}
.artifact-card .artifact-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--fossil-900);
    margin-bottom: var(--space-2);
}
.artifact-card .artifact-era {
    display: inline-block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--fossil-500);
    font-weight: 600;
}

/* Footer */
.footer-lap {
    background-color: var(--fossil-900);
    color: var(--fossil-300);
    padding: var(--space-8) 0 var(--space-4);
    border-top: 4px solid var(--terracotta-500);
}
.footer-lap a {
    color: var(--ochre-300);
}
.footer-lap a:hover {
    color: var(--terracotta-300);
}

/* Utilitários */
.bg-fossil-50  { background-color: var(--fossil-50)  !important; }
.bg-fossil-100 { background-color: var(--fossil-100) !important; }
.bg-fossil-900 { background-color: var(--fossil-900) !important; color: var(--fossil-100); }

.text-fossil-500 { color: var(--fossil-500) !important; }
.text-fossil-700 { color: var(--fossil-700) !important; }
.text-fossil-900 { color: var(--fossil-900) !important; }
.text-terracotta { color: var(--terracotta-500) !important; }
.text-ochre      { color: var(--ochre-500)      !important; }

.border-fossil-200 { border: 1px solid var(--fossil-200) !important; }
.border-terracotta { border-color: var(--terracotta-500) !important; }

.shadow-lap-sm { box-shadow: var(--shadow-sm); }
.shadow-lap-md { box-shadow: var(--shadow-md); }
.shadow-lap-lg { box-shadow: var(--shadow-lg); }

.rounded-lap   { border-radius: var(--radius-md) !important; }
.rounded-lap-lg { border-radius: var(--radius-lg) !important; }

.items-center { align-items: center !important; }
.justify-between { justify-content: space-between !important; }

/* Responsividade */
@media (max-width: 768px) {
    h1, .h1 { font-size: 2.125rem; }
    h2, .h2 { font-size: 1.75rem; }
    h3, .h3 { font-size: 1.375rem; }
    .hero h1 { font-size: 2.25rem; }
    .hero { padding: var(--space-8) 0; }
    section { padding: var(--space-6) 0; }
}

/* Acessibilidade — foco visível para navegação por teclado */
:focus-visible {
    outline: 2px solid var(--terracotta-500);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Modo de impressão (para artigos acadêmicos) */
@media print {
    body { background: #fff; color: #000; }
    .no-print, .navbar-lap, .navbar, .footer-lap { display: none !important; }
    a { color: #000; text-decoration: underline; }
}