/* ECM tasarım sistemi: tüm değerler buradan gelir. */
:root {
  /* Sistem renkleri */
  --paper: #F3F5F7;
  --white: #FFFFFF;
  --ink: #14202B;
  --graphite: #56636F;
  --line: #C8D1DB;
  --line-soft: #E1E6EB;
  --blue: #1F4FA3;
  --blue-deep: #173C7D;
  --red: #D3202A;
  --red-deep: #AE1820;
  --on-dark: #E6EBF0;
  --on-dark-muted: #A9B5C1;

  /* Ozalit (hero çizim zemini) */
  --blueprint: #163B78;
  --bp-line: #FFFFFF;
  --bp-dim: #A9C4F5;
  --bp-text: #CFDCF3;

  /* Tipografi */
  --font: "Source Sans 3", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-heading: "Barlow Semi Condensed", "Arial Narrow", sans-serif;
  --font-brand: "Archivo", sans-serif;
  --fs-display: clamp(2.75rem, 1.6rem + 4.2vw, 5.25rem);
  --fs-h2: clamp(2rem, 1.4rem + 2.2vw, 3.25rem);
  --fs-h3: clamp(1.5rem, 1.2rem + 1vw, 2.125rem);
  --fs-lead: clamp(1.0625rem, 1rem + .3vw, 1.25rem);
  --fs-body: 1rem;
  --fs-small: .875rem;
  --fs-code: .8125rem;

  /* Ölçü ve ritim */
  --max: 1440px;
  --gutter: clamp(18px, 4vw, 56px);
  --section: clamp(72px, 8vw, 128px);
  --radius: 4px;
  --header-h: 76px;
  --bridge-lap: clamp(40px, 5vw, 80px);  /* Tek elden paftasının hero'ya taşma payı */

  /* Hareket */
  --ease: cubic-bezier(.2, .8, .2, 1);
  --dur: .5s;
}