/* =========================================
   1. VARIÁVEIS (DESIGN SYSTEM GITHUB STYLE)
   ========================================= */
:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --border-color: #30363d;
    --accent-primary: #7c3aed;
    --accent-secondary: #22d3ee;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    
    --radius: 12px;
    --radius-sm: 6px;
    --spacing: 16px;
    --transition: 0.25s ease;
}

[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f6f8fa;
    --border-color: #d0d7de;
    --text-primary: #24292f;
    --text-secondary: #57606a;
}

/* =========================================
   2. RESET & BASE
   ========================================= */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html { scroll-behavior: smooth; }

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, sans-serif;
    line-height: 1.6;
    transition: background-color var(--transition), color var(--transition);
    overflow-x: hidden;
}

ul { list-style: none; }
a { text-decoration: none; color: inherit; }

/* =========================================
   3. LAYOUT
   ========================================= */
.container {
    width: 100%; max-width: 1100px;
    margin: 0 auto; padding: 0 var(--spacing);
}

.section { padding: 80px 0; }
.bg-alt { background-color: var(--bg-secondary); border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); }
.section-title { font-size: 1.75rem; margin-bottom: 2rem; font-weight: 600; }

.grid { display: grid; gap: 1.5rem; }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); }

/* =========================================
   4. COMPONENTES (ANTI-BUG)
   ========================================= */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: 8px; padding: 10px 20px; border-radius: var(--radius-sm);
    font-weight: 500; font-size: 0.95rem; cursor: pointer;
    border: 1px solid transparent; text-align: center;
    transition: transform var(--transition), background-color var(--transition), box-shadow var(--transition);
    will-change: transform;
}
.btn:hover { transform: scale(1.03); }

.btn-primary { background-color: var(--accent-primary); color: #fff; border-color: var(--accent-primary); }
.btn-secondary { background-color: var(--bg-secondary); color: var(--text-primary); border: 1px solid var(--border-color); }
.btn-sm { padding: 8px 16px; font-size: 0.85rem; display: inline-flex; width: max-content; margin-top: 12px; }

/* Botão Oficial Discord (OAuth Style) */
.btn-discord {
    background-color: #5865F2; /* Blurple oficial */
    color: #ffffff;
    border-color: #5865F2;
    box-shadow: 0 4px 14px rgba(88, 101, 242, 0.15);
}
.btn-discord:hover { background-color: #4752C4; border-color: #4752C4; color: #ffffff; }

/* Toggle de Tema Arredondado (+4% de tamanho) */
.icon-btn {
    background: transparent; border: 1px solid var(--border-color);
    color: var(--text-secondary); width: 38px; height: 38px; /* Era 36px */
    border-radius: 50%; /* Perfeitamente circular */
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    transition: var(--transition); font-size: 1.05rem;
}
.icon-btn:hover { color: var(--text-primary); border-color: var(--text-secondary); transform: scale(1.03); }

/* Cards Base */
.card {
    background-color: var(--bg-secondary); border: 1px solid var(--border-color);
    border-radius: var(--radius); padding: 1.5rem;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

/* =========================================
   5. SEÇÕES ESPECÍFICAS
   ========================================= */
/* Preloader */
.preloader { position: fixed; inset: 0; background-color: var(--bg-primary); z-index: 9999; display: flex; align-items: center; justify-content: center; transition: opacity 0.5s ease; }
.preloader-content { width: 300px; }
.preloader-text { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 8px; display: flex; justify-content: space-between; font-weight: 500; }
.progress-track { width: 100%; height: 4px; background-color: var(--border-color); border-radius: 4px; overflow: hidden; }
.progress-bar { height: 100%; width: 0%; background-color: var(--accent-primary); transition: width 0.1s linear; }

/* Header */
.header { position: fixed; top: 0; left: 0; width: 100%; background-color: rgba(var(--bg-primary), 0.9); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border-color); z-index: 1000; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font-weight: 700; font-size: 1.2rem; }
.brand span { color: var(--accent-primary); }
.nav-links { display: flex; gap: 1.5rem; }
.nav-links a { color: var(--text-secondary); font-weight: 500; font-size: 0.95rem; transition: color var(--transition); }
.nav-links a:hover { color: var(--text-primary); }

/* Hero Section */
.hero { padding-top: 120px; padding-bottom: 60px; }
.hero-layout { display: flex; align-items: center; gap: 4rem; }
.hero-visual { flex-shrink: 0; }
.hero-avatar { width: 260px; height: 260px; border-radius: 50%; border: 2px solid var(--border-color); object-fit: cover; padding: 6px; background-color: var(--bg-secondary); }
.hero-title { font-size: 3rem; font-weight: 700; line-height: 1.1; margin-bottom: 1rem; }
.hero-bio { font-size: 1.1rem; color: var(--text-secondary); margin-bottom: 2rem; max-width: 600px; }
.hero-actions { display: flex; gap: 1rem; }

/* Experiência (Ícones Oficiais em SVG) */
.tech-card { text-align: center; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.tech-card:hover { border-color: var(--text-secondary); }
.tech-icon-svg { width: 56px; height: 56px; margin-bottom: 1rem; object-fit: contain; transition: transform var(--transition); }
.tech-card:hover .tech-icon-svg { transform: scale(1.1); }

/* Criações (Cards Horizontais c/ Imagem Placeholder) */
.bot-card { display: flex; align-items: flex-start; gap: 1.5rem; }
.bot-card:hover { transform: translateY(-4px); box-shadow: 0 10px 20px rgba(0,0,0,0.1); border-color: var(--accent-secondary); }
.bot-avatar { width: 80px; height: 80px; border-radius: 50%; flex-shrink: 0; border: 1px solid var(--border-color); object-fit: cover; }
.bot-info h3 { font-size: 1.2rem; margin-bottom: 0.5rem; color: var(--text-primary); }
.bot-info p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.5; margin-bottom: 0.5rem; }

/* Footer */
.footer { border-top: 1px solid var(--border-color); padding: 40px 0; background-color: var(--bg-primary); }
.footer-layout { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 2rem; }
.brand-text { font-size: 1.1rem; font-weight: 600; }
.copyright { color: var(--text-secondary); font-size: 0.9rem; margin: 5px 0 15px; }
.social-links { display: flex; gap: 1rem; flex-wrap: wrap; }
.social-links a { color: var(--text-secondary); font-size: 1.3rem; transition: var(--transition); display: flex; align-items: center; justify-content: center; }
.social-links a:hover { color: var(--text-primary); transform: scale(1.15); }

/* Utilitários - Scroll Animation */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* Responsividade */
@media (max-width: 768px) {
    .hero-layout { flex-direction: column; text-align: center; gap: 2rem; }
    .hero-actions { justify-content: center; flex-wrap: wrap; }
    .nav { display: none; }
    .footer-layout { flex-direction: column; text-align: center; }
    .social-links { justify-content: center; }
    .bot-card { flex-direction: column; align-items: center; text-align: center; }
}