/* =========================================================================
   Techfala — Colors & Type Tokens
   Primary color extracted from logo: #962cf3 (vibrant purple)
   Fonts: Sora (display) + DM Sans (body) + JetBrains Mono (code)
   Font files in /fonts are substitutes from Google Fonts — flag for review.
   ========================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=DM+Sans:opsz,wght@9..40,400;9..40,500;9..40,600;9..40,700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* --------------------------------------------------------------- COLORS */

  /* Brand — purple scale derived from #962cf3 */
  --brand-50:  #f6efff;
  --brand-100: #ead8ff;
  --brand-200: #d6b2ff;
  --brand-300: #bc85ff;
  --brand-400: #a858fb;
  --brand-500: #962cf3; /* primary */
  --brand-600: #7e18d6;
  --brand-700: #6711ab;
  --brand-800: #4e0f83;
  --brand-900: #350a5a;
  --brand-950: #1d0534;

  /* Accent — WhatsApp green, used *sparingly* to signal channel */
  --wa-50:  #e7f9ef;
  --wa-100: #c8f1d7;
  --wa-500: #25d366;
  --wa-600: #1ebb57;
  --wa-700: #128c7e;  /* whatsapp dark */
  --wa-800: #075e54;

  /* Neutrals — warm-cool hybrid, slight purple tint */
  --ink-0:   #ffffff;
  --ink-50:  #faf9fc;
  --ink-100: #f4f2f7;
  --ink-150: #ebe8ef;
  --ink-200: #ddd9e3;
  --ink-300: #c3bed0;
  --ink-400: #948da4;
  --ink-500: #6c6680;
  --ink-600: #4e4960;
  --ink-700: #363245;
  --ink-800: #23202e;
  --ink-900: #14121c;
  --ink-950: #0b0a12;

  /* Semantic */
  --success:  #1ebb57;
  --warning:  #f5a524;
  --danger:   #e5484d;
  --info:     #3b82f6;

  /* Semantic foreground / background aliases */
  --bg:       var(--ink-0);
  --bg-soft:  var(--ink-50);
  --bg-muted: var(--ink-100);
  --bg-sunken:var(--ink-150);
  --bg-inverse: var(--ink-900);

  --fg:       var(--ink-900);
  --fg-muted: var(--ink-600);
  --fg-subtle:var(--ink-400);
  --fg-on-brand: var(--ink-0);

  --border:        var(--ink-200);
  --border-strong: var(--ink-300);
  --divider:       var(--ink-150);

  --focus-ring: color-mix(in oklch, var(--brand-500) 40%, transparent);

  /* Brand gradient — as seen on Instagram icon bg */
  --brand-gradient: linear-gradient(180deg, #130922 0%, #4e0f83 45%, #962cf3 100%);
  --brand-gradient-radial: radial-gradient(ellipse at 50% 120%, #962cf3 0%, #4e0f83 45%, #130922 100%);

  /* --------------------------------------------------------------- TYPE  */

  --font-display: 'Sora', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-body:    'DM Sans', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Type scale — fluid but with sensible caps */
  --fs-xs:    12px;
  --fs-sm:    14px;
  --fs-base:  16px;
  --fs-md:    18px;
  --fs-lg:    20px;
  --fs-xl:    24px;
  --fs-2xl:   30px;
  --fs-3xl:   38px;
  --fs-4xl:   48px;
  --fs-5xl:   64px;
  --fs-6xl:   80px;

  --lh-tight:  1.1;
  --lh-snug:   1.25;
  --lh-normal: 1.5;
  --lh-relaxed:1.65;

  --tracking-tight: -0.02em;
  --tracking-snug:  -0.01em;
  --tracking-normal: 0;
  --tracking-wide:   0.04em;
  --tracking-caps:   0.08em;

  /* ------------------------------------------------------- SPACING / RADIUS */

  --sp-0:  0;
  --sp-1:  4px;
  --sp-2:  8px;
  --sp-3:  12px;
  --sp-4:  16px;
  --sp-5:  20px;
  --sp-6:  24px;
  --sp-8:  32px;
  --sp-10: 40px;
  --sp-12: 48px;
  --sp-16: 64px;
  --sp-20: 80px;
  --sp-24: 96px;

  --radius-xs:  4px;
  --radius-sm:  8px;
  --radius-md:  12px;
  --radius-lg:  16px;
  --radius-xl:  20px;
  --radius-2xl: 28px;
  --radius-pill: 999px;

  /* Shadows — soft, slightly purple-tinted */
  --shadow-xs: 0 1px 2px rgba(20, 18, 28, 0.06);
  --shadow-sm: 0 2px 4px rgba(20, 18, 28, 0.06), 0 1px 2px rgba(20, 18, 28, 0.04);
  --shadow-md: 0 8px 16px -4px rgba(20, 18, 28, 0.08), 0 2px 6px rgba(20, 18, 28, 0.05);
  --shadow-lg: 0 20px 40px -12px rgba(20, 18, 28, 0.14), 0 6px 14px rgba(20, 18, 28, 0.06);
  --shadow-xl: 0 32px 64px -16px rgba(78, 15, 131, 0.22), 0 10px 24px rgba(20, 18, 28, 0.08);
  --shadow-brand: 0 12px 30px -8px rgba(150, 44, 243, 0.45);
  --shadow-inset: inset 0 1px 0 rgba(255,255,255,0.6), inset 0 -1px 0 rgba(20,18,28,0.06);

  /* Motion */
  --ease-standard: cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-emphasized: cubic-bezier(0.2, 0.9, 0.1, 1.2);
  --dur-fast:   140ms;
  --dur-normal: 220ms;
  --dur-slow:   360ms;
}

/* ----------------------------------------------------- SEMANTIC ELEMENTS */

html, body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  color: var(--fg);
  letter-spacing: var(--tracking-tight);
  line-height: var(--lh-tight);
  font-weight: 700;
  margin: 0;
  text-wrap: balance;
}

h1 { font-size: var(--fs-5xl); font-weight: 800; }
h2 { font-size: var(--fs-3xl); }
h3 { font-size: var(--fs-2xl); }
h4 { font-size: var(--fs-xl); font-weight: 600; letter-spacing: var(--tracking-snug); }
h5 { font-size: var(--fs-lg); font-weight: 600; letter-spacing: var(--tracking-snug); }

p  { font-size: var(--fs-base); line-height: var(--lh-relaxed); color: var(--fg-muted); margin: 0; text-wrap: pretty; }

small, .text-sm { font-size: var(--fs-sm); }
.text-xs { font-size: var(--fs-xs); }

code, pre, kbd {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--ink-100);
  color: var(--ink-800);
  border-radius: var(--radius-xs);
}
code { padding: 2px 6px; }
pre  { padding: var(--sp-4); border-radius: var(--radius-md); overflow: auto; }

.eyebrow {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-xs);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--brand-600);
}

::selection { background: var(--brand-200); color: var(--brand-900); }