/**
 * Denklem Bilgisayar — Tasarım Sistemi ve Değişkenleri (variables.css)
 * Strict Light Mode • Orijinal Kurumsal Turuncu & Safir/Antrasit Uyumu • Sıfır Sarı/Kırmızı Kuralı
 */

:root {
  /* ==================== 1. KURUMSAL RENK PALETİ ==================== */
  /* Ana Vurgu Rengi: Kurumsal Turuncu (Logoyla %100 Uyumlu) */
  --primary-orange: #f57c00;
  --primary-orange-hover: #e65100;
  --primary-orange-light: #f8fafc;
  --primary-orange-border: #e2e8f0;
  --primary-orange-rgb: 245, 124, 0;

  /* Kurumsal Rozet (Badge) Renkleri (Sarı-Kırmızı Asla Yok) */
  --badge-bg: #f0f9ff;
  --badge-text: #0284c7;
  --badge-border: #bae6fd;

  /* Kurumsal Derinlik: Safir / Antrasit Tonları */
  --navy-950: #090d16;
  --navy-900: #0f172a;
  --navy-800: #1e293b;
  --navy-700: #334155;
  --navy-rgb: 15, 23, 42;

  /* Teknoloji & Bilişim Vurgusu: Kobalt Mavi / Cyan */
  --tech-blue: #0284c7;
  --tech-blue-hover: #0369a1;
  --tech-blue-light: #f0f9ff;
  --tech-blue-border: #e0f2fe;

  /* ==================== 2. YÜZEY VE ARKA PLAN (STRICT LIGHT MODE) ==================== */
  --bg-body: #ffffff;
  --bg-surface: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-hover: #fcfdfe;
  --bg-subtle: #f1f5f9;
  --bg-muted: #e2e8f0;

  /* ==================== 3. METİN & TİPOGRAFİ RENKLERİ ==================== */
  --text-main: #0f172a;
  --text-body: #334155;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --text-white: #ffffff;

  /* ==================== 4. KENARLIKLAR (BORDERS & DIVIDERS) ==================== */
  --border-color: #e2e8f0;
  --border-color-light: #f1f5f9;
  --border-color-dark: #cbd5e1;
  --border-focus: #f57c00;

  /* ==================== 5. TİPOGRAFİ VE FONT STANDARTLARI ==================== */
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Consolas', 'Courier New', monospace;

  /* Dinamik Akıcı Tipografi Ölçekleri (clamp) */
  --font-xs: clamp(0.75rem, 0.72rem + 0.15vw, 0.8125rem);  /* 12px - 13px */
  --font-sm: clamp(0.84rem, 0.8rem + 0.2vw, 0.9rem);      /* 13.5px - 14.5px */
  --font-base: clamp(0.95rem, 0.92rem + 0.25vw, 1.05rem);  /* 15px - 16.8px */
  --font-lg: clamp(1.1rem, 1.05rem + 0.35vw, 1.25rem);    /* 17.5px - 20px */
  --font-xl: clamp(1.3rem, 1.2rem + 0.6vw, 1.55rem);      /* 21px - 25px */
  --font-2xl: clamp(1.65rem, 1.5rem + 1vw, 2.1rem);       /* 26px - 33.6px */
  --font-3xl: clamp(2.1rem, 1.8rem + 1.6vw, 2.85rem);     /* 33.6px - 45.6px */
  --font-hero: clamp(2.5rem, 2.1rem + 2.2vw, 3.65rem);    /* 40px - 58.4px */

  /* ==================== 6. GÖLGELER VE DERİNLİK (ELEVATION) ==================== */
  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 12px -2px rgba(15, 23, 42, 0.06), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 28px -4px rgba(15, 23, 42, 0.08), 0 4px 8px -2px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 40px -8px rgba(15, 23, 42, 0.12);
  --shadow-orange: 0 4px 16px 0 rgba(245, 124, 0, 0.28);
  --shadow-orange-lg: 0 8px 24px 0 rgba(245, 124, 0, 0.35);

  /* ==================== 7. KÖŞE YUVARLAMA (RADIUS) ==================== */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* ==================== 8. GEÇİŞ VE ANİMASYON (TRANSITIONS) ==================== */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.38s cubic-bezier(0.16, 1, 0.3, 1);

  /* ==================== 9. YERLEŞİM VE ÖLÇÜLER (LAYOUT) ==================== */
  --container-max: 1240px;
  --container-padding: clamp(16px, 4vw, 32px);
  --header-height: 78px;
  --header-height-mobile: 68px;
  --touch-target-min: 44px; /* %100 Mobil Dokunmatik Demir Kanunu */
}