/* ==========================================================================
   EQ-MATH DESIGN TOKENS
   Sumber kebenaran tunggal untuk warna, tipografi, spacing, radius, shadow.
   Semua komponen & fitur (termasuk "website settings" theming) harus
   mengambil nilai dari sini, bukan hardcode warna/ukuran baru.
   ========================================================================== */

:root {

  /* ---------- 1. BRAND — NAVY (warna utama: logo, heading, tombol utama) ---------- */
  --color-navy-50:  #f4f4f8;
  --color-navy-100: #eaeaf1;
  --color-navy-200: #cacadb;
  --color-navy-300: #a0a0bf;
  --color-navy-400: #6c6b9b;
  --color-navy-500: #2d2c70; /* = warna asli logo EQ-Math */
  --color-navy-600: #26255f;
  --color-navy-700: #1f1f4e;
  --color-navy-800: #19183e;
  --color-navy-900: #12122d;

  /* ---------- 2. BRAND — 4 warna kuadran otak (aksen, ilustrasi, kategori) ---------- */
  /* Kuning */
  --color-yellow-50:  #fffcf3;
  --color-yellow-100: #fef8e6;
  --color-yellow-200: #fdeec1;
  --color-yellow-300: #fbe090;
  --color-yellow-400: #f9ce52;
  --color-yellow-500: #f6b908; /* = warna asli logo */
  --color-yellow-600: #d19d07;
  --color-yellow-700: #ac8206;
  --color-yellow-800: #876604;
  --color-yellow-900: #624a03;

  /* Merah / Oranye-kemerahan */
  --color-red-50:  #fef6f5;
  --color-red-100: #fdeceb;
  --color-red-200: #fad1ce;
  --color-red-300: #f5aca6;
  --color-red-400: #f07e74;
  --color-red-500: #e94639; /* = warna asli logo */
  --color-red-600: #c63c30;
  --color-red-700: #a33128;
  --color-red-800: #80261f;
  --color-red-900: #5d1c17;

  /* Hijau */
  --color-green-50:  #f5fbf6;
  --color-green-100: #ebf6ee;
  --color-green-200: #cce9d4;
  --color-green-300: #a4d8b2;
  --color-green-400: #72c287;
  --color-green-500: #35a853; /* = warna asli logo */
  --color-green-600: #2d8f47;
  --color-green-700: #25763a;
  --color-green-800: #1d5c2e;
  --color-green-900: #154321;

  /* Biru */
  --color-blue-50:  #f6f9fe;
  --color-blue-100: #ecf3fe;
  --color-blue-200: #d0e0fc;
  --color-blue-300: #aac8fa;
  --color-blue-400: #7baaf7;
  --color-blue-500: #4285f4; /* = warna asli logo */
  --color-blue-600: #3871cf;
  --color-blue-700: #2e5dab;
  --color-blue-800: #244986;
  --color-blue-900: #1a3562;

  /* ---------- 3. NEUTRAL — abu-abu sejuk, senada dengan hue navy ---------- */
  --color-neutral-50:  #f9f9fb;
  --color-neutral-100: #f4f4f6;
  --color-neutral-200: #e5e5eb;
  --color-neutral-300: #cfced9;
  --color-neutral-400: #a4a4b7;
  --color-neutral-500: #797996;
  --color-neutral-600: #5f5e78;
  --color-neutral-700: #48485b;
  --color-neutral-800: #32313f;
  --color-neutral-900: #201f28;

  /* ---------- 4. SEMANTIC — makna fungsional UI (pakai token brand di atas) ---------- */
  --color-success:       var(--color-green-500);
  --color-success-bg:    var(--color-green-50);
  --color-warning:       var(--color-yellow-600);   /* 600 dipakai krn 500 kurang kontras di atas putih */
  --color-warning-bg:    var(--color-yellow-50);
  --color-danger:        var(--color-red-500);
  --color-danger-bg:     var(--color-red-50);
  --color-info:          var(--color-blue-500);
  --color-info-bg:       var(--color-blue-50);

  /* ---------- 5. ALIAS PERMUKAAN & TEKS (yang paling sering dipakai di komponen) ---------- */
  --color-bg-page:        #ffffff;
  --color-bg-surface:     var(--color-neutral-50);
  --color-bg-surface-alt: var(--color-neutral-100);
  --color-border:         var(--color-neutral-200);
  --color-border-strong:  var(--color-neutral-300);

  --color-text-primary:   var(--color-navy-900);
  --color-text-secondary: var(--color-neutral-600);
  --color-text-muted:     var(--color-neutral-400);
  --color-text-on-brand:  #ffffff;

  --color-brand-primary:   var(--color-navy-500);
  --color-brand-primary-hover: var(--color-navy-600);

  /* ---------- 6. TIPOGRAFI ---------- */
  /* Ganti font-family di bawah kalau EQ-Math sudah punya font resmi */
  --font-heading: 'Poppins', 'Segoe UI', sans-serif;
  --font-body:    'Inter', 'Segoe UI', sans-serif;

  --text-xs:   0.75rem;   /* 12px */
  --text-sm:   0.875rem;  /* 14px */
  --text-base: 1rem;      /* 16px */
  --text-lg:   1.125rem;  /* 18px */
  --text-xl:   1.25rem;   /* 20px */
  --text-2xl:  1.5rem;    /* 24px */
  --text-3xl:  1.875rem;  /* 30px */
  --text-4xl:  2.25rem;   /* 36px */

  --font-weight-regular:  400;
  --font-weight-medium:   500;
  --font-weight-semibold: 600;
  --font-weight-bold:     700;

  --line-height-tight:  1.2;
  --line-height-normal: 1.5;
  --line-height-loose:  1.7;

  /* ---------- 7. SPACING (kelipatan 4px) ---------- */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* ---------- 8. RADIUS ---------- */
  --radius-sm:   6px;   /* input, badge kecil */
  --radius-md:   10px;  /* button, card kecil */
  --radius-lg:   16px;  /* card, modal */
  --radius-full: 9999px; /* pill, avatar */

  /* ---------- 9. SHADOW / ELEVATION ---------- */
  --shadow-sm: 0 1px 2px rgba(18, 18, 45, 0.06);
  --shadow-md: 0 4px 12px rgba(18, 18, 45, 0.08);
  --shadow-lg: 0 12px 24px rgba(18, 18, 45, 0.12);

  /* ---------- 10. TRANSISI ---------- */
  --transition-fast:   120ms ease;
  --transition-normal: 200ms ease;

  /* ---------- 11. Z-INDEX ---------- */
  --z-dropdown: 100;
  --z-sticky:   200;
  --z-modal:    300;
  --z-toast:    400;
}