/* =========================================================
   DEBİTEKNİK — Base / Reset (light-first)
   ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-16);
  line-height: var(--lh-base);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
  overflow-x: hidden;
  position: relative;
}

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

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

button { background: none; border: 0; cursor: pointer; padding: 0; }

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

ul, ol { list-style: none; padding: 0; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: var(--tracking-tight);
  line-height: var(--lh-tight);
  color: var(--text);
}

p { color: var(--text-soft); }

::selection { background: var(--ice-300); color: var(--ink-900); }

:focus-visible {
  outline: 2px solid var(--ice-500);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

/* ---------- Layout primitives ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container-wide {
  width: 100%;
  max-width: var(--container-wide);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: clamp(4rem, 8vw, 7rem);
  position: relative;
}

.section--cool { background: var(--bg-cool); }
.section--soft { background: var(--bg-soft); }
.section--warm { background: var(--bg-warm); }
.section--dark {
  background: var(--bg-dark);
  color: var(--text-invert);
}
.section--dark h1, .section--dark h2,
.section--dark h3, .section--dark h4 { color: var(--text-invert); }
.section--dark p { color: var(--text-invert-soft); }

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

.mono {
  font-family: var(--font-mono);
  font-feature-settings: "tnum", "zero";
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 500;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--ash-500);
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}

.section--dark .eyebrow { color: var(--ice-300); }

.text-center { text-align: center; }
.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}