/* Belim — uygulamayla aynı görsel dil: klinik enstrüman.
   Soğuk nötr zemin, sistem sans-serif, tek koyu mürekkep mavisi vurgu,
   keskin köşeler, emoji yok, gradyan yok, gölge yok. */

:root {
  --paper: #f4f6f7;
  --surface: #ffffff;
  --ink: #0d0f11;
  --ink-muted: #5a626b;
  --hairline: #dbdfe3;
  --accent: #14405a;
  --on-accent: #f4f6f7;
  --alert: #a5241c;
  --measure: 46rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0f1113;
    --surface: #191c1f;
    --ink: #edeff1;
    --ink-muted: #99a2ab;
    --hairline: #262b30;
    --accent: #86bedb;
    --on-accent: #0f1113;
    --alert: #f08278;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- Üst çubuk ---------- */

header.site {
  border-bottom: 1px solid var(--hairline);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 10;
}

header.site .wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 60px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
  font-size: 1.05rem;
}

.brand img {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  display: block;
}

nav.site {
  display: flex;
  gap: 1.25rem;
  margin-left: auto;
  align-items: center;
  flex-wrap: wrap;
}

nav.site a {
  color: var(--ink-muted);
  text-decoration: none;
  font-size: 0.92rem;
}

nav.site a:hover,
nav.site a[aria-current="page"] { color: var(--ink); }

.lang-toggle {
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  background: transparent;
  border: 1px solid var(--hairline);
  border-radius: 4px;
  padding: 0.3rem 0.7rem;
  cursor: pointer;
  white-space: nowrap;
}

.lang-toggle:hover { border-color: var(--accent); }

/* ---------- İçerik ---------- */

main { padding: 3rem 0 4rem; }

h1 {
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}

h2 {
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  margin: 2.5rem 0 0.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--hairline);
}

h2:first-of-type { border-top: none; padding-top: 0; }

h3 {
  font-size: 1.02rem;
  margin: 1.75rem 0 0.5rem;
}

p, li { color: var(--ink); }

.lede {
  font-size: 1.12rem;
  color: var(--ink-muted);
  margin: 0 0 2rem;
  max-width: 38rem;
}

.muted { color: var(--ink-muted); }

.small { font-size: 0.86rem; }

ul { padding-left: 1.15rem; }
li { margin: 0.35rem 0; }

a { color: var(--accent); }

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 3px;
  padding: 0.05em 0.35em;
}

/* ---------- Bileşenler ---------- */

.meta {
  font-size: 0.86rem;
  color: var(--ink-muted);
  margin: 0 0 2.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--hairline);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 4px;
  padding: 1.25rem 1.4rem;
  margin: 1.5rem 0;
}

.panel.warn { border-color: color-mix(in srgb, var(--alert) 40%, var(--hairline)); }
.panel.warn h3 { color: var(--alert); margin-top: 0; }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.5rem 2rem;
  margin: 2rem 0;
}

.feature h3 { margin-top: 0; }
.feature p { margin: 0; color: var(--ink-muted); font-size: 0.95rem; }

.rule-list { list-style: none; padding: 0; margin: 1rem 0; }

.rule-list li {
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--hairline);
  display: flex;
  gap: 0.9rem;
  align-items: baseline;
}

.rule-list li::before {
  content: "—";
  color: var(--ink-muted);
  flex: none;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.95rem;
}

th, td {
  text-align: left;
  padding: 0.6rem 0.75rem 0.6rem 0;
  border-bottom: 1px solid var(--hairline);
  vertical-align: top;
}

th { font-weight: 600; color: var(--ink-muted); font-size: 0.85rem; }

/* ---------- Alt bilgi ---------- */

footer.site {
  border-top: 1px solid var(--hairline);
  padding: 2rem 0 3rem;
  color: var(--ink-muted);
  font-size: 0.86rem;
}

footer.site .wrap { display: flex; gap: 1.25rem; flex-wrap: wrap; }
footer.site a { color: var(--ink-muted); text-decoration: none; }
footer.site a:hover { color: var(--ink); }
footer.site .spacer { margin-left: auto; }

/* ---------- Dil ---------- */

[data-lang] { display: none; }
[data-lang].is-visible { display: block; }
span[data-lang].is-visible,
a[data-lang].is-visible { display: inline; }

/* ---------- Ekran görüntüleri ---------- */

.shots {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0 0;
}

.shots figure { margin: 0; }

.shots img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--hairline);
  border-radius: 6px;
  background: var(--surface);
}

.shots figcaption {
  margin-top: 0.5rem;
  font-size: 0.82rem;
  color: var(--ink-muted);
}