/* Akademik Dedektör — tek stil dosyası
   Renk ve tipografi değişkenleri en üstte; hepsini buradan değiştirebilirsin. */

:root {
  --paper:      oklch(0.985 0.006 70);
  --paper-2:    oklch(0.965 0.010 72);
  --paper-3:    oklch(0.935 0.014 72);
  --ink:        oklch(0.235 0.012 60);
  --ink-soft:   oklch(0.455 0.012 60);
  --ink-faint:  oklch(0.640 0.010 60);
  --rule:       oklch(0.885 0.012 70);
  --accent:     oklch(0.550 0.130 30);
  --accent-dim: oklch(0.640 0.090 30);
  --accent-bg:  oklch(0.955 0.020 40);
  --ok:         oklch(0.520 0.100 150);

  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans:  "Archivo", Helvetica, Arial, sans-serif;
  --mono:  ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --w: 1120px;
  --r: 4px;
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.62;
  font-weight: 400;
  text-wrap: pretty;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; text-underline-offset: 3px; }
a:hover { color: var(--ink); text-decoration: underline; }

img, svg { max-width: 100%; }

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.12;
  margin: 0;
  text-wrap: balance;
}

h1 { font-size: clamp(2.5rem, 5.6vw, 4.1rem); }
h2 { font-size: clamp(1.9rem, 3.4vw, 2.6rem); }
h3 { font-size: 1.28rem; line-height: 1.25; }

p { margin: 0; }

.wrap { width: 100%; max-width: var(--w); margin: 0 auto; padding: 0 28px; }
.narrow { max-width: 720px; }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}
.eyebrow.muted { color: var(--ink-faint); }

.lead { font-size: 1.16rem; color: var(--ink-soft); }
.small { font-size: 0.9rem; color: var(--ink-soft); }
.tiny { font-size: 0.78rem; color: var(--ink-faint); }

/* ---------- header ---------- */

.site-head {
  position: sticky;
  top: 0;
  z-index: 30;
  background: color-mix(in oklab, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}
.site-head .wrap {
  display: flex;
  align-items: center;
  gap: 28px;
  min-height: 74px;
}

.logo { display: flex; align-items: center; gap: 11px; color: var(--ink); flex: none; }
.logo:hover { text-decoration: none; color: var(--ink); }
.logo svg { width: 30px; height: 30px; display: block; }
.logo-text {
  font-family: var(--serif);
  font-size: 1.22rem;
  letter-spacing: -0.02em;
  line-height: 1;
}
.logo-text b { font-weight: 600; }

.nav { display: flex; align-items: center; gap: 26px; margin-left: auto; }
.nav a {
  color: var(--ink-soft);
  font-size: 0.94rem;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
}
.nav a:hover { color: var(--ink); text-decoration: none; border-bottom-color: var(--ink); }
.nav a[aria-current] { color: var(--ink); border-bottom-color: var(--accent); }
.nav a.btn { color: var(--paper); border-bottom: 1px solid var(--ink); }
.nav a.btn:hover { color: #fff; border-color: var(--accent); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 46px;
  padding: 12px 22px;
  border: 1px solid var(--ink);
  border-radius: var(--r);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; text-decoration: none; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn-ghost:hover { background: transparent; border-color: var(--ink); color: var(--ink); }
.btn-sm { min-height: 38px; padding: 8px 15px; font-size: 0.86rem; }
.btn-block { width: 100%; }

.nav-toggle { display: none; }

/* ---------- hero ---------- */

.hero { padding: 96px 0 84px; border-bottom: 1px solid var(--rule); }
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: start;
}
.hero h1 { margin: 18px 0 22px; }
.hero .lead { max-width: 34em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: 30px;
  font-size: 0.88rem;
  color: var(--ink-faint);
}
.hero-meta span { display: flex; align-items: center; gap: 8px; }
.dot { width: 5px; height: 5px; border-radius: 50%; background: var(--ok); flex: none; }

/* ---------- mail örneği kartı ---------- */

.mail-card {
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 6px;
  box-shadow: 0 1px 0 var(--rule), 0 18px 40px -30px oklch(0.3 0.02 60 / 0.5);
  overflow: hidden;
}
.mail-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--rule);
  background: var(--paper-2);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.mail-body { padding: 22px 22px 26px; }
.mail-persona {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.mail-subject { font-family: var(--serif); font-size: 1.2rem; margin-bottom: 4px; }
.mail-from { font-size: 0.82rem; color: var(--ink-faint); margin-bottom: 18px; }
.mail-kriter {
  display: grid;
  gap: 3px;
  padding: 12px 14px;
  margin-bottom: 20px;
  background: var(--paper-2);
  border-left: 2px solid var(--accent);
  font-size: 0.88rem;
  color: var(--ink-soft);
}
.mail-note { margin-top: 20px; }

/* Örnek e-posta gösterimi (otomatik geçişli) */
.mail-demo-label {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-bottom: 14px;
}
.mail-demo-stage { position: relative; }
.mail-slide {
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .5s ease, transform .5s ease;
  position: absolute;
  inset: 0 0 auto 0;
}
.mail-slide.active {
  opacity: 1;
  visibility: visible;
  transform: none;
  position: relative;
}
.mail-dots { display: flex; gap: 8px; margin-top: 16px; }
.mail-dot {
  width: 26px;
  height: 4px;
  padding: 0;
  border: 0;
  border-radius: 100px;
  background: var(--rule);
  cursor: pointer;
  transition: background .3s ease;
}
.mail-dot.active { background: var(--accent); }
.mail-dot:hover { background: var(--accent-dim); }

.ilan {
  padding: 16px 0;
  border-top: 1px solid var(--rule);
}
.ilan:first-of-type { border-top: 0; padding-top: 0; }
.ilan-uni { font-family: var(--serif); font-size: 1.05rem; }
.ilan-pos { font-size: 0.94rem; color: var(--ink-soft); margin-top: 2px; }
.ilan-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border: 1px solid var(--rule);
  border-radius: 100px;
  color: var(--ink-soft);
  white-space: nowrap;
}
.tag.hit { border-color: var(--accent-dim); color: var(--accent); background: var(--accent-bg); }

/* ---------- bölümler ---------- */

section.band { padding: 84px 0; border-bottom: 1px solid var(--rule); }
section.band.tint { background: var(--paper-2); }
.band-head { max-width: 640px; margin-bottom: 48px; }
.band-head h2 { margin: 14px 0 16px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.step { background: var(--paper); padding: 30px 28px 34px; }
section.band.tint .step { background: var(--paper-2); }
.step-no {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 22px;
}
.step h3 { margin-bottom: 10px; }
.step p { color: var(--ink-soft); font-size: 0.96rem; }

.cols-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.cols-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }

.list { list-style: none; margin: 0; padding: 0; }
.list li {
  position: relative;
  padding: 13px 0 13px 20px;
  border-bottom: 1px solid var(--rule);
  font-size: 0.98rem;
}
.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
}
.list li b { font-weight: 600; }
.list.plain li::before { background: var(--ink-faint); }

/* ---------- fiyat ---------- */

.price-card {
  border: 1px solid var(--ink);
  border-radius: 6px;
  background: var(--paper);
  padding: 40px;
}
.price-figure {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--serif);
  margin: 18px 0 6px;
}
.price-figure b { font-size: 3.6rem; font-weight: 400; letter-spacing: -0.03em; line-height: 1; }
.price-figure span { font-size: 1.05rem; color: var(--ink-soft); font-family: var(--sans); }
.price-card .btn { margin-top: 26px; }
.price-features { margin-top: 26px; }

.badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 9px;
  border-radius: 100px;
  background: var(--accent-bg);
  color: var(--accent);
  border: 1px solid var(--accent-dim);
}

/* ---------- SSS ---------- */

.faq { border-top: 1px solid var(--rule); }
.faq details { border-bottom: 1px solid var(--rule); }
.faq summary {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: baseline;
  padding: 22px 0;
  cursor: pointer;
  font-family: var(--serif);
  font-size: 1.18rem;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--accent); font-size: 1.1rem; }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding: 0 0 24px; max-width: 62ch; color: var(--ink-soft); }

/* ---------- formlar ---------- */

.form { display: grid; gap: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
label { display: block; font-size: 0.86rem; font-weight: 500; margin-bottom: 7px; }
label .opt { color: var(--ink-faint); font-weight: 400; }
input[type=text], input[type=email], input[type=tel], input[type=password], input[type=date], select, textarea {
  width: 100%;
  min-height: 46px;
  padding: 11px 13px;
  font-family: var(--sans);
  font-size: 0.96rem;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: var(--r);
}
textarea { min-height: 130px; resize: vertical; line-height: 1.55; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent-dim); outline-offset: 1px; border-color: var(--accent-dim); }
.hint { font-size: 0.8rem; color: var(--ink-faint); margin-top: 6px; }
.check { display: flex; gap: 11px; align-items: flex-start; font-size: 0.88rem; color: var(--ink-soft); }
.check input { flex: none; width: 17px; height: 17px; margin-top: 3px; accent-color: var(--accent); }

.note {
  padding: 16px 18px;
  border-left: 2px solid var(--accent);
  background: var(--accent-bg);
  font-size: 0.92rem;
}
.alert { padding: 14px 18px; border-radius: var(--r); font-size: 0.92rem; border: 1px solid var(--rule); background: var(--paper-2); }
.alert.ok { border-color: var(--ok); background: oklch(0.965 0.03 150); color: oklch(0.38 0.08 150); }
.alert.err { border-color: var(--accent-dim); background: var(--accent-bg); color: var(--accent); }

/* ---------- görsel yer tutucu ---------- */

.ph {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 260px;
  padding: 16px;
  border: 1px solid var(--rule);
  border-radius: var(--r);
  background-image: repeating-linear-gradient(135deg,
    oklch(0.93 0.012 70) 0 6px, transparent 6px 13px);
  background-color: var(--paper-2);
}
.ph span {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 4px 8px;
}

/* ---------- makale / metin sayfaları ---------- */

.prose { max-width: 68ch; }
.prose h2 { font-size: 1.7rem; margin: 44px 0 14px; }
.prose h3 { margin: 32px 0 10px; }
.prose p { margin: 0 0 18px; color: var(--ink-soft); }
.prose p:first-child { color: var(--ink); font-size: 1.1rem; }
.prose ol, .prose ul { color: var(--ink-soft); padding-left: 22px; margin: 0 0 18px; }
.prose li { margin-bottom: 8px; }

.post-list { border-top: 1px solid var(--rule); }
.post-item { display: block; padding: 28px 0; border-bottom: 1px solid var(--rule); color: var(--ink); }
.post-item:hover { text-decoration: none; color: var(--ink); background: var(--paper-2); }
.post-item h3 { margin: 8px 0 8px; }
.post-item p { color: var(--ink-soft); font-size: 0.95rem; max-width: 70ch; }

/* ---------- CTA şeridi ---------- */

.cta {
  background: var(--ink);
  color: var(--paper);
  padding: 76px 0;
}
.cta h2 { color: var(--paper); }
.cta p { color: oklch(0.78 0.01 70); margin-top: 14px; max-width: 46em; }
.cta .btn { background: var(--paper); color: var(--ink); border-color: var(--paper); margin-top: 30px; }
.cta .btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ---------- footer ---------- */

.site-foot { padding: 60px 0 44px; font-size: 0.9rem; color: var(--ink-soft); }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 44px; }
.foot-grid h4 { font-family: var(--sans); font-size: 0.74rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 16px; }
.foot-links { display: grid; gap: 9px; }
.foot-links a { color: var(--ink-soft); }
.foot-links a:hover { color: var(--ink); }
.foot-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  justify-content: space-between;
  margin-top: 46px;
  padding-top: 22px;
  border-top: 1px solid var(--rule);
  font-size: 0.82rem;
  color: var(--ink-faint);
}

/* ---------- tablo ---------- */

table.data { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
table.data th, table.data td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--rule); vertical-align: top; }
table.data th { font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); font-weight: 500; white-space: nowrap; }
table.data tr:hover td { background: var(--paper-2); }
.pill { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.05em; text-transform: uppercase; padding: 3px 8px; border-radius: 100px; border: 1px solid var(--rule); color: var(--ink-soft); white-space: nowrap; }
.pill.on { border-color: var(--ok); color: var(--ok); }
.pill.off { border-color: var(--accent-dim); color: var(--accent); }

/* ---------- responsive ---------- */

@media (max-width: 940px) {
  .hero-grid, .cols-2 { grid-template-columns: 1fr; gap: 44px; }
  .steps, .cols-3 { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .hero { padding: 64px 0 56px; }
  section.band { padding: 62px 0; }
}

@media (max-width: 700px) {
  body { font-size: 16px; }
  .wrap { padding: 0 20px; }
  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
    background: transparent;
    border: 1px solid var(--rule);
    border-radius: var(--r);
    padding: 9px 13px;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink);
    cursor: pointer;
  }
  .nav {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 8px 20px 20px;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
  }
  .nav.open { display: flex; }
  .nav a { padding: 13px 0; border-bottom: 1px solid var(--rule); }
  .nav .btn { margin-top: 14px; }
  .form-row { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; gap: 32px; }
  .price-card { padding: 28px; }
  table.data { font-size: 0.82rem; }
  .table-scroll { overflow-x: auto; }
}