/* ═══════════════════════════════════════════════════════
   PROPi.IN — Design System
   Premium Broker CRM/MLS Platform
   ═══════════════════════════════════════════════════════ */

/* ── CSS Variables ──────────────────────────────────── */
:root {
  /* Primary palette */
  --propi-primary: #4f46e5;
  --propi-primary-light: #6366f1;
  --propi-primary-dark: #3730a3;
  --propi-primary-50: #eef2ff;

  /* Accent */
  --propi-accent: #f43f5e;
  --propi-accent-light: #fb7185;

  /* Success / CTA */
  --propi-success: #10b981;
  --propi-success-dark: #059669;

  /* Warning */
  --propi-warning: #f59e0b;

  /* Neutrals */
  --propi-dark: #0f172a;
  --propi-gray-900: #1e293b;
  --propi-gray-800: #334155;
  --propi-gray-700: #475569;
  --propi-gray-600: #64748b;
  --propi-gray-500: #94a3b8;
  --propi-gray-400: #cbd5e1;
  --propi-gray-300: #e2e8f0;
  --propi-gray-200: #f1f5f9;
  --propi-gray-100: #f8fafc;
  --propi-white: #ffffff;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  --gradient-hero: linear-gradient(135deg, #1e1b4b 0%, #312e81 40%, #4f46e5 100%);
  --gradient-card: linear-gradient(135deg, rgba(79, 70, 229, 0.05) 0%, rgba(124, 58, 237, 0.05) 100%);
  --gradient-success: linear-gradient(135deg, #059669 0%, #10b981 100%);
  --gradient-accent: linear-gradient(135deg, #e11d48 0%, #f43f5e 100%);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 20px rgba(79, 70, 229, 0.3);

  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Outfit', 'Inter', sans-serif;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 150ms var(--ease-out);
  --transition-base: 250ms var(--ease-out);
  --transition-slow: 400ms var(--ease-out);
}

/* ── Reset & Base ───────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--propi-gray-800);
  background: var(--propi-gray-100);
  line-height: 1.6;
  font-size: 14px;
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
}

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

a:hover {
  color: var(--propi-primary-dark);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ── Typography ─────────────────────────────────────── */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--propi-dark);
}

h1 {
  font-size: clamp(2rem, 4vw, 3.25rem);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1.1rem;
}

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

.text-muted {
  color: var(--propi-gray-600);
}

.text-white {
  color: var(--propi-white);
}

.text-center {
  text-align: center;
}

.text-sm {
  font-size: 0.875rem;
}

/* ── Layout Utilities ───────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

.section {
  padding: 40px 0;
}

.section--sm {
  padding: 28px 0;
}

.grid {
  display: grid;
  gap: 16px;
}

.grid-2 {
  grid-template-columns: 1fr;
}

.grid-3 {
  grid-template-columns: 1fr;
}

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

.flex {
  display: flex;
}

.flex-center {
  align-items: center;
  justify-content: center;
}

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

.flex-col {
  flex-direction: column;
}

.gap-sm {
  gap: 8px;
}

.gap-md {
  gap: 12px;
}

.gap-lg {
  gap: 20px;
}

.gap-xl {
  gap: 28px;
}

/* ── Tablet+ ───────────────────────────────────────── */
@media (min-width: 600px) {
  body {
    font-size: 15px;
  }

  .container {
    padding: 0 24px;
  }

  .section {
    padding: 64px 0;
  }

  .section--sm {
    padding: 40px 0;
  }

  .grid {
    gap: 24px;
  }

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

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

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

  .gap-md {
    gap: 16px;
  }

  .gap-lg {
    gap: 24px;
  }
}

/* ── Desktop ───────────────────────────────────────── */
@media (min-width: 1024px) {
  .section {
    padding: 80px 0;
  }

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

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