:root {
  --space-3xs: 2px; --space-2xs: 4px; --space-xs: 8px; --space-sm: 12px; --space-md: 16px; --space-lg: 24px; --space-xl: 40px; --space-2xl: 64px; --space-3xl: 96px; --space-4xl: 144px;
  --text-xs: 0.8125rem; --text-sm: 0.875rem; --text-md: 1rem; --text-lg: 1.25rem; --text-xl: 1.5625rem; --text-2xl: 1.953rem; --text-3xl: 2.441rem;
  --text-display-s: clamp(2.25rem, 4vw + 0.5rem, 3.75rem); --text-display: clamp(2.75rem, 5vw + 1rem, 5.25rem);
  --text-section: clamp(2rem, 2.5vw + 1rem, 3.5rem); --text-title: clamp(1.25rem, 0.75vw + 0.875rem, 1.625rem); --text-lead: clamp(1.125rem, 0.35vw + 1rem, 1.375rem);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1); --ease-in: cubic-bezier(0.7, 0, 0.84, 0); --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-micro: 120ms; --dur-short: 220ms; --dur-long: 420ms;
  --color-error: oklch(52% 0.19 27); --color-success: oklch(50% 0.12 150);
  --container: 1440px; --gutter: 64px; --gap-columns: 32px; --section-gap-s: 120px; --section-gap: 144px; --section-gap-l: 176px;
  --z-base: 1; --z-raised: 10; --z-dropdown: 100; --z-sticky: 200; --z-sticky-nav: 300; --z-modal: 400; --z-toast: 500; --z-tooltip: 600;
  /* Marka: README'deki palet (#f3f4ef kâğıt, #0b1410 mürekkep, #0F6E56 yeşil, #2DC98A nane), OKLCH'ye çevrildi */
  --color-paper: oklch(96.5% 0.008 150); --color-paper-2: oklch(93% 0.012 155); --color-paper-3: oklch(89.5% 0.015 158);
  --color-ink: oklch(18.1% 0.016 165); --color-ink-2: oklch(32% 0.018 163); --color-muted: oklch(44% 0.017 162);
  --color-rule: oklch(86% 0.014 158);
  --color-accent: oklch(48.1% 0.091 170); --color-accent-strong: oklch(41.8% 0.079 170); --color-accent-ink: oklch(98.6% 0.006 165);
  --color-focus: oklch(47% 0.13 168);
  --color-field: var(--color-accent); --color-field-ink: var(--color-accent-ink); --color-field-muted: oklch(93% 0.025 165); --color-field-deep: oklch(38% 0.07 170);
  --color-night: oklch(14.6% 0.011 174); --color-night-2: oklch(23.9% 0.019 167); --color-night-ink: oklch(95.9% 0.007 152); --color-night-muted: oklch(80.1% 0.019 161);
  --color-mint: oklch(74.3% 0.156 160); --color-mint-pale: oklch(92.1% 0.041 163);
  /* Örnek arayüz yüzeyleri: kâğıttan bir basamak açık, saf beyaz değil */
  --color-surface: oklch(99.2% 0.004 160); --color-surface-2: oklch(97.3% 0.009 161); --color-surface-sel: oklch(95.2% 0.02 165);
  --color-down: oklch(48.9% 0.148 34); --color-down-pale: oklch(90% 0.045 40); --color-down-ink: oklch(36% 0.11 34);
  --color-busy: oklch(52% 0.11 85);
  --font-display: "Libre Franklin", "Helvetica Neue", Arial, system-ui, sans-serif; --font-body: "Source Serif 4", Georgia, "Times New Roman", serif; --font-outlier: var(--font-display);
  --radius-card: 14px; --radius-input: 999px; --radius-pill: 999px; --rule-hair: 1px; --shadow-card: none;
  --tracking-display: -0.035em; --display-weight: 700;
  --nav-height: 72px;
}