/* ============================================================================
   DESIGN TOKENS - ANCIENT SYMPHONIA
   Color, Typography, Spacing, Motion, Easing
   Merkezi yönetim: bu dosya değiştirildiğinde tüm tasarım güncellenir.
   ============================================================================ */

:root {
  /* COLOR PALETTE - Lüks Koyu Kırmızı + Altın */
  --color-bg-primary: #13181d;      /* Ana arka plan - Koyu Navy */
  --color-bg-secondary: #1a2330;    /* İkincil arka plan - Hafif daha açık */
  --color-surface: #252d38;         /* Kart/surface arka plan */

  --color-red-dark: #8B1D1D;        /* Koyu kırmızı - accent vurguları */
  --color-red-accent: #d0343a;      /* Kırmızı - mevcut, buttons */
  --color-red-light: #ff5252;       /* Açık kırmızı - hover states */

  --color-gold: oklch(68% 0.15 60); /* Lüks altın - aksenler */
  --color-gold-light: oklch(75% 0.12 60); /* Hafif altın */

  --color-text: #e8e8e8;            /* Yazı rengi - açık gri */
  --color-text-muted: #999999;      /* Hafif yazı - secondary */
  --color-text-dark: #ffffff;       /* Zıt kontrastlı yazı - white */

  --color-border: #404860;          /* Border - subtle */
  --color-divider: #2d3744;         /* Bölüm ayırıcı */

  /* TYPOGRAPHY - Modern Sans-serif */
  --font-serif-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-sans-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --text-heading-xxl: clamp(2.5rem, 6vw, 5rem);  /* Hero başlık */
  --text-heading-xl: clamp(2rem, 4vw, 3.5rem);   /* Section başlık */
  --text-heading-lg: clamp(1.75rem, 3vw, 2.5rem);
  --text-heading-md: clamp(1.375rem, 2.5vw, 1.75rem);
  --text-heading-sm: 1.25rem;
  --text-body: clamp(0.95rem, 1vw, 1.1rem);
  --text-caption: 0.875rem;

  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* SPACING - Ölçekli */
  --space-xs: 0.5rem;     /* 8px */
  --space-sm: 0.75rem;    /* 12px */
  --space-md: 1rem;       /* 16px */
  --space-lg: 1.5rem;     /* 24px */
  --space-xl: 2rem;       /* 32px */
  --space-2xl: 3rem;      /* 48px */
  --space-3xl: 4rem;      /* 64px */
  --space-section: clamp(2rem, 8vw, 6rem); /* Section boşluğu */

  /* MOTION - Duration & Easing */
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;
  --duration-slower: 800ms;

  --ease-linear: linear;
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1); /* Lüks smooth out */
  --ease-in-expo: cubic-bezier(0.95, 0.05, 0.795, 0.035);

  /* BORDER & RADIUS */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-full: 9999px;

  /* SHADOWS - Derinlik */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 12px 32px rgba(0, 0, 0, 0.6);

  /* BREAKPOINTS (CSS'te doğrudan kullanılmaz, dokümantasyon) */
  /* 320px: Mobile */
  /* 375px: Mobile+ */
  /* 768px: Tablet */
  /* 1024px: Desktop */
  /* 1440px: Desktop Large */

  /* Z-INDEX SCALE */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 1000;
  --z-tooltip: 1100;
}

/* DARK MODE (varsayılan, explicit) */
@media (prefers-color-scheme: dark) {
  :root {
    /* Zaten dark, override gerek yok */
  }
}

/* LIGHT MODE (future opsiyonel) */
@media (prefers-color-scheme: light) {
  :root {
    /* Optional: inverse palette, şu an kullanılmıyor */
  }
}

/* REDUCED MOTION */
@media (prefers-reduced-motion: reduce) {
  :root {
    --duration-fast: 0ms;
    --duration-normal: 0ms;
    --duration-slow: 0ms;
    --duration-slower: 0ms;
    --ease-out-expo: linear;
    --ease-in-expo: linear;
  }

  * {
    animation-duration: 0ms !important;
    transition-duration: 0ms !important;
  }
}

/* ============================================================================
   UTILITY CLASSES - Token tabanlı
   ============================================================================ */

/* Text colors */
.text-primary { color: var(--color-text); }
.text-secondary { color: var(--color-text-muted); }
.text-accent { color: var(--color-red-accent); }
.text-gold { color: var(--color-gold); }
.text-white { color: var(--color-text-dark); }

/* Background colors */
.bg-primary { background-color: var(--color-bg-primary); }
.bg-secondary { background-color: var(--color-bg-secondary); }
.bg-surface { background-color: var(--color-surface); }
.bg-accent { background-color: var(--color-red-accent); }
.bg-gold { background-color: var(--color-gold); }

/* Typography */
.heading-xxl { font: var(--font-weight-bold) var(--text-heading-xxl) var(--font-serif-heading); letter-spacing: -0.02em; }
.heading-xl { font: var(--font-weight-bold) var(--text-heading-xl) var(--font-serif-heading); letter-spacing: -0.01em; }
.heading-lg { font: var(--font-weight-bold) var(--text-heading-lg) var(--font-serif-heading); }
.heading-md { font: var(--font-weight-semibold) var(--text-heading-md) var(--font-sans-body); }
.heading-sm { font: var(--font-weight-semibold) var(--text-heading-sm) var(--font-sans-body); }
.body { font: var(--font-weight-normal) var(--text-body) var(--font-sans-body); line-height: 1.6; }
.caption { font: var(--font-weight-normal) var(--text-caption) var(--font-sans-body); }

/* Spacing */
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }
.m-md { margin: var(--space-md); }
.m-lg { margin: var(--space-lg); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }