/* ===========================
   BASE.CSS — Reset & Tokens
   =========================== */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  hanging-punctuation: first last;
  scroll-padding-top: 5rem;
}

/* ===========================
   DESIGN TOKENS
   =========================== */

:root,
[data-theme='light'] {
  /* Surfaces */
  --color-bg: #f6f5f1;
  --color-surface: #f9f8f5;
  --color-surface-2: #ffffff;
  --color-surface-offset: #edecea;
  --color-divider: #dcdbd7;
  --color-border: #d0cec9;

  /* Text */
  --color-text: #1a1916;
  --color-text-muted: #6b6965;
  --color-text-faint: #b0aea9;
  --color-text-inverse: #f9f8f5;

  /* Primary Accent — Derin Petrol Mavisi */
  --color-primary: #1a4a5c;
  --color-primary-hover: #0f3244;
  --color-primary-active: #081e2b;
  --color-primary-highlight: #cdd9de;

  /* Secondary accent — Yumuşak amber (girişim sıcaklığı) */
  --color-accent: #b5702a;
  --color-accent-highlight: #f0e2d0;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 1px 2px oklch(0.15 0.02 220 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.15 0.02 220 / 0.09);
  --shadow-lg: 0 12px 32px oklch(0.15 0.02 220 / 0.13);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Type Scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 8rem);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Fonts */
  --font-display: 'Cabinet Grotesk', 'Helvetica Neue', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;
}

[data-theme='dark'] {
  --color-bg: #0f1318;
  --color-surface: #151a20;
  --color-surface-2: #1a2028;
  --color-surface-offset: #1c2330;
  --color-divider: #252d38;
  --color-border: #2e3847;
  --color-text: #d8dde4;
  --color-text-muted: #7a8694;
  --color-text-faint: #4a5566;
  --color-text-inverse: #0f1318;
  --color-primary: #5fa8c5;
  --color-primary-hover: #7bbdd4;
  --color-primary-active: #96cfe0;
  --color-primary-highlight: #1c2d38;
  --color-accent: #d4874a;
  --color-accent-highlight: #2e2018;
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.25);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.35);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.45);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0f1318;
    --color-surface: #151a20;
    --color-surface-2: #1a2028;
    --color-surface-offset: #1c2330;
    --color-divider: #252d38;
    --color-border: #2e3847;
    --color-text: #d8dde4;
    --color-text-muted: #7a8694;
    --color-text-faint: #4a5566;
    --color-text-inverse: #0f1318;
    --color-primary: #5fa8c5;
    --color-primary-hover: #7bbdd4;
    --color-primary-active: #96cfe0;
    --color-primary-highlight: #1c2d38;
    --color-accent: #d4874a;
    --color-accent-highlight: #2e2018;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.25);
    --shadow-md: 0 4px 12px oklch(0 0 0 / 0.35);
    --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.45);
  }
}

/* ===========================
   BASE STYLES
   =========================== */

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

ul[role='list'], ol[role='list'] {
  list-style: none;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

h1, h2, h3, h4, h5, h6 {
  text-wrap: balance;
  line-height: 1.15;
  font-family: var(--font-display);
}

p, li, figcaption {
  text-wrap: pretty;
  max-width: 72ch;
}

a {
  color: inherit;
  text-decoration: none;
}

::selection {
  background: var(--color-primary-highlight);
  color: var(--color-text);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

a, button, [role='button'], input, textarea, select {
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    opacity var(--transition-interactive);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}