/* ========================================
   ONIRICA — Design System
   Jornada de Autoconhecimento através dos Sonhos
   ======================================== */

/* ===== CSS Reset ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* ===== CSS Variables (Design Tokens) ===== */
:root {
    /* Colors — Cosmic Night Palette */
    --bg-primary: #06060f;
    --bg-secondary: #0c0c1d;
    --bg-tertiary: #12122a;
    --bg-surface: #1a1a35;
    --bg-surface-hover: #22224a;
    --bg-elevated: rgba(26, 26, 53, 0.8);
    
    /* Glass */
    --glass-bg: rgba(26, 26, 53, 0.45);
    --glass-border: rgba(108, 99, 255, 0.15);
    --glass-border-hover: rgba(108, 99, 255, 0.35);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    
    /* Primary */
    --primary: #6c63ff;
    --primary-light: #8b83ff;
    --primary-dark: #5046e5;
    --primary-glow: rgba(108, 99, 255, 0.3);
    --primary-subtle: rgba(108, 99, 255, 0.08);
    
    /* Accent */
    --accent-gold: #ffd700;
    --accent-gold-dark: #e5c100;
    --accent-gold-glow: rgba(255, 215, 0, 0.25);
    --accent-amber: #f59e0b;
    --accent-rose: #f472b6;
    --accent-emerald: #34d399;
    --accent-cyan: #22d3ee;
    
    /* Lavender scale */
    --lavender: #a78bfa;
    --lavender-light: #c4b5fd;
    --lavender-dark: #7c3aed;
    
    /* Text */
    --text-primary: #e8e6f0;
    --text-secondary: #9a95b0;
    --text-muted: #6b6580;
    --text-inverse: #06060f;
    --text-accent: var(--primary-light);
    
    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-default: rgba(255, 255, 255, 0.1);
    --border-strong: rgba(255, 255, 255, 0.18);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6c63ff 0%, #a78bfa 100%);
    --gradient-gold: linear-gradient(135deg, #ffd700 0%, #f59e0b 100%);
    --gradient-cosmic: linear-gradient(135deg, #0c0c1d 0%, #1a1040 50%, #0c0c1d 100%);
    --gradient-aurora: linear-gradient(135deg, #6c63ff 0%, #22d3ee 50%, #a78bfa 100%);
    --gradient-night: linear-gradient(180deg, #06060f 0%, #12122a 50%, #1a1040 100%);
    --gradient-card: linear-gradient(145deg, rgba(26, 26, 53, 0.6) 0%, rgba(12, 12, 29, 0.8) 100%);
    
    /* Typography */
    --font-display: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-serif: 'Crimson Pro', Georgia, serif;
    
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    --text-7xl: 4.5rem;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.35);
    --shadow-glow: 0 0 20px var(--primary-glow);
    --shadow-glow-gold: 0 0 20px var(--accent-gold-glow);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 500ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
    
    /* Z-index */
    --z-base: 0;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-overlay: 300;
    --z-modal: 400;
    --z-toast: 500;
    
    /* Layout */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1200px;
    --container-2xl: 1400px;
    --sidebar-width: 260px;
    --navbar-height: 72px;
}

/* ===== Base Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: var(--text-5xl); font-weight: 700; }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p { color: var(--text-secondary); }

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}
a:hover { color: var(--lavender-light); }

/* ===== Utility Classes ===== */
.container {
    width: 100%;
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.container-sm { max-width: var(--container-sm); }
.container-md { max-width: var(--container-md); }
.container-lg { max-width: var(--container-lg); }

.text-center { text-align: center; }
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.text-gradient-gold {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section {
    padding: var(--space-5xl) 0;
}

.section-title {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-3xl);
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }
.gap-2xl { gap: var(--space-2xl); }

.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { 
    background: var(--bg-surface); 
    border-radius: var(--radius-full); 
}
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* ===== Selection ===== */
::selection {
    background: var(--primary);
    color: white;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    h1 { font-size: var(--text-4xl); }
    h2 { font-size: var(--text-3xl); }
    .section { padding: var(--space-4xl) 0; }
}

@media (max-width: 768px) {
    .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
    h1 { font-size: var(--text-3xl); }
    h2 { font-size: var(--text-2xl); }
    .container { padding: 0 var(--space-md); }
    .section { padding: var(--space-3xl) 0; }
    .section-title { font-size: var(--text-3xl); }
}