/* ---- reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-height, 88px); }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
[hidden] { display: none !important; }
h1, h2, h3, h4, p { margin: 0; }
input, textarea, select { font: inherit; color: inherit; }

/* visible keyboard focus everywhere */
:focus-visible {
  outline: 2px solid var(--moss);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---- typography ---- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-display);
  font-size: var(--step-caption);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--moss);
}
.eyebrow::before {
  content: "";
  width: 1.4em;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}
.eyebrow--on-dark { color: #fff; }

h1, .h1 {
  font-family: var(--font-display);
  font-size: var(--step-h1);
  font-weight: var(--w-h1, 800);
  line-height: 1.02;
  letter-spacing: -0.015em;
}
h2, .h2 {
  font-family: var(--font-display);
  font-size: var(--step-h2);
  font-weight: var(--w-h2, 700);
  line-height: 1.08;
  letter-spacing: -0.015em;
}
h3, .h3 {
  font-family: var(--font-display);
  font-size: var(--step-h3);
  font-weight: var(--w-h3, 600);
  line-height: 1.15;
}
.lede {
  font-size: var(--step-lede);
  line-height: 1.45;
}
.accent-line {
  font-family: var(--font-accent);
  font-style: italic;
  font-weight: 400;
}
.body-soft { color: var(--ink-soft); }

/* ---- layout helpers ---- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section {
  padding-block: var(--section-pad);
  position: relative;
}
.section--mist { background: var(--mist); }
.section--dark {
  background: var(--basin);
  color: var(--paper-on-dark);
}
.hairline {
  border: 0;
  border-top: 1px solid var(--line);
}
.section--dark .hairline { border-top-color: var(--line-on-dark); }

/* ---- buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-display);
  font-size: var(--step-caption);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.95em 1.6em;
  border-radius: var(--radius);
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--solid {
  background: var(--button-bg, var(--moss));
  color: var(--paper-raised);
}
.btn--solid:hover { background: var(--basin); }
.btn--ghost {
  border: 1px solid currentColor;
  color: inherit;
  background: transparent;
}
.btn--ghost:hover { background: rgba(255,255,255,0.08); }
.section:not(.section--dark) .btn--ghost:hover { background: rgba(23,32,28,0.06); }
.btn--arrow::after { content: "→"; transition: transform var(--dur-fast) var(--ease); }
.btn--arrow:hover::after { transform: translateX(3px); }

/* ---- scroll reveal ---- */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal-group] > * { transition-delay: calc(var(--reveal-index, 0) * 90ms); }

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* Yönetim panelinden "Animasyonlar: kapalı" seçilirse */
html[data-motion="off"] *, html[data-motion="off"] *::before, html[data-motion="off"] *::after {
  animation: none !important;
  transition: none !important;
  scroll-behavior: auto !important;
}
html[data-motion="off"] [data-reveal] { opacity: 1 !important; transform: none !important; }