/* ==========================================================================
   TOKENS — THRESHOLD  (guc & kondisyon studyosu)
   --------------------------------------------------------------------------
   Portfolyodaki dort siteyi yan yana koydugunda hepsi ayri okumali:

     Cafe   — sicak krem, serif, keskin kose
     Dental — acik mint, geometrik sans, yumusak kose
     Emlak  — koyu komur, ince serif, sifir kose
     Fitness— SIYAH, agir sikistirilmis BUYUK HARF, elektrik lime

   Fitness tek "yuksek enerji" olan: kalin tipografi, yuksek kontrast,
   canli vurgu. Digerleri sakin.
   ========================================================================== */

:root {
  /* ---------------------------------------------------------------------
     1. RENK
     Lime siyah uzerinde neredeyse parliyor — spor salonu sitelerinde
     "hareket" hissini renk tasiyor, animasyona yuklenmeye gerek kalmiyor.
     --------------------------------------------------------------------- */
  --c-bg: #0B0B0C;
  --c-surface: #141416;
  --c-surface-2: #1C1C1F;
  --c-text: #F5F5F3;
  --c-text-muted: #8C8C90;
  --c-accent: #D6FF3E;        /* elektrik lime */
  --c-accent-hover: #C2EB2A;
  --c-accent-soft: rgb(214 255 62 / 0.14);
  --c-border: #232326;
  --c-focus: var(--c-accent);

  /* Acik bolumler — siyah sayfada mola */
  --c-inverse-bg: #F5F5F3;
  --c-inverse-text: #0B0B0C;
  --c-inverse-muted: #5A5A5E;

  /* ---------------------------------------------------------------------
     2. TIPOGRAFI
     Anton: tek agirlik, cok sikistirilmis — buyuk puntoda afis gibi durur.
     Barlow: govde, notr ama hafif teknik.
     --------------------------------------------------------------------- */
  --font-display: "Anton", "Arial Narrow", Impact, sans-serif;
  --font-body: "Barlow", system-ui, -apple-system, "Segoe UI", sans-serif;

  --fw-light: 300;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-bold: 600;

  --fs-xs:   clamp(0.75rem, 0.72rem + 0.15vw, 0.8125rem);
  --fs-sm:   clamp(0.875rem, 0.84rem + 0.17vw, 0.9375rem);
  --fs-base: clamp(1rem, 0.96rem + 0.19vw, 1.125rem);
  --fs-md:   clamp(1.125rem, 1.05rem + 0.35vw, 1.375rem);
  --fs-lg:   clamp(1.5rem, 1.25rem + 1vw, 2.25rem);
  --fs-xl:   clamp(2rem, 1.5rem + 2.2vw, 3.5rem);
  --fs-2xl:  clamp(2.5rem, 1.6rem + 4vw, 5.5rem);
  --fs-3xl:  clamp(3rem, 1.6rem + 6vw, 7.5rem);
  --fs-hero: clamp(3.25rem, 1rem + 9.5vw, 11rem);

  --lh-tight: 0.92;   /* Anton'un govdesi zaten yuksek, siki dizilir */
  --lh-snug: 1.15;
  --lh-normal: 1.6;
  --lh-loose: 1.8;

  --ls-tight: -0.01em;
  --ls-normal: 0;
  --ls-wide: 0.08em;
  --ls-wider: 0.18em;

  /* ---------------------------------------------------------------------
     3. BOSLUK — tum sitelerde ayni
     --------------------------------------------------------------------- */
  --s-0: 0;
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4rem;
  --s-9: 6rem;
  --s-10: 8rem;

  --space-section: clamp(4rem, 2rem + 7vw, 8.5rem);
  --space-gutter: clamp(1.25rem, 0.5rem + 3vw, 3rem);

  /* ---------------------------------------------------------------------
     4. YERLESIM
     --------------------------------------------------------------------- */
  --width-content: 74rem;
  --width-narrow: 40rem;
  --width-wide: 94rem;

  --radius-sm: 4px;
  --radius-md: 4px;
  --radius-lg: 8px;
  --radius-full: 999px;

  --z-base: 1;
  --z-sticky: 100;
  --z-header: 200;
  --z-menu: 300;
  --z-cursor: 400;
  --z-preloader: 500;

  /* ---------------------------------------------------------------------
     5. HAREKET — tum sitelerde ayni
     --------------------------------------------------------------------- */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out-quart: cubic-bezier(0.76, 0, 0.24, 1);
  --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);

  --dur-fast: 0.18s;
  --dur-base: 0.35s;
  --dur-slow: 0.7s;
  --dur-slower: 1.1s;

  --shadow-sm: 0 1px 2px rgb(0 0 0 / 0.4);
  --shadow-md: 0 8px 24px rgb(0 0 0 / 0.5);
  --shadow-lg: 0 24px 64px rgb(0 0 0 / 0.6);
}