/* ==================================================
   BASE CSS — MODERNE, MINIMAL, MOBILE-FIRST
   ================================================== */

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

img, video, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; }

/* ===== DESIGN TOKENS ===== */
:root {
  --bg: #ffffff;
  --surface: #f8f9fa;
  --text: #1a1a1a;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  
  --font: "Manrope", system-ui, -apple-system, sans-serif;
  --font-display: "Sora", "Manrope", system-ui, sans-serif;
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 999px;
  
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  
  --transition: 200ms ease;
  --container: 1100px;
}

/* ===== DARK THEME ===== */
:root[data-theme="dark"] {
  --bg: #0f0f0f;
  --surface: #1a1a1a;
  --text: #f5f5f5;
  --text-muted: #9ca3af;
  --border: #2a2a2a;
  --primary: #3b82f6;
  --primary-hover: #60a5fa;
}

/* ===== BASE ===== */
html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}

h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.2; }
a { color: inherit; text-decoration: none; }

/* ===== LAYOUT ===== */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.btn--primary {
  background: var(--primary);
  color: #fff;
}
.btn--primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn--outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn--full { width: 100%; }
.btn--lg { padding: 1rem 2rem; font-size: 1rem; }