/* Doppel site — Paper direction.
   Açık, editoryal: beyaz alan malzemenin kendisi, tek bir teal vurgu gözü
   yönlendirir, serif yalnızca satır başına bir italik kelimede görünür.
   Koyu mod yok — tema bilinçli olarak tek. */

:root {
  --bg: #F3FCFE;
  --surface: #ECF5F8;
  --surface-2: #E2EBEE;
  --border: #D3DDDF;
  --border-soft: #E2EBEE;
  --text: #060C0E;
  --muted: #384244;
  --faint: #717D80;
  --brand: #0B7285;
  --brand-hover: #005D6D;
  --on-brand: #FFFFFF;
  --ring: rgba(11, 114, 133, 0.35);
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 12px;
  --sans: "Instrument Sans", ui-sans-serif, system-ui, "Segoe UI", sans-serif;
  --serif: "Instrument Serif", ui-serif, Georgia, serif;
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Consolas, monospace;
  --measure: 62ch;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  font-weight: 450;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 28px; }

h1, h2, h3, h4 { line-height: 1.15; margin: 0; font-weight: 560; letter-spacing: -0.015em; }

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--brand); outline-offset: 2px; border-radius: var(--r-sm);
}

code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-sm);
  padding: 0.1em 0.35em;
  white-space: nowrap;
}

/* ---------- Üst çubuk ---------- */

.top {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-soft);
}
.top-in { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-weight: 620; font-size: 18px; letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
.brand-eyes { width: 30px; height: 30px; flex: none; }
.top nav { display: flex; gap: 30px; font-size: 15px; align-items: center; }
.top nav a { color: var(--muted); }
.top nav a:hover { color: var(--text); text-decoration: none; }
.nav-gh { color: var(--text) !important; font-weight: 560; }

/* ---------- Kahraman ---------- */

.hero { padding: 92px 0 84px; }
.hero-copy { max-width: 760px; }
.eyebrow {
  margin: 0 0 18px;
  font-size: 13px; font-weight: 560; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--brand);
}
.hero h1 { font-size: clamp(38px, 4.6vw, 58px); letter-spacing: -0.025em; }
.hero h1 em, .closing-line em {
  font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: 0;
}
.hero .sub { margin: 22px 0 0; max-width: 62ch; font-size: 19px; color: var(--muted); }

.cta-row { display: flex; gap: 14px; align-items: center; margin-top: 30px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 12px 22px; border-radius: var(--r-md);
  font-size: 15.5px; font-weight: 560; transition: background 150ms ease, color 150ms ease;
}
.btn-solid { background: var(--brand); color: var(--on-brand); }
.btn-solid:hover { background: var(--brand-hover); text-decoration: none; }
.btn-text { color: var(--brand); padding: 12px 4px; }
.btn-text:hover { text-decoration: none; color: var(--brand-hover); }
.install-note { margin: 26px 0 0; font-size: 13.5px; color: var(--faint); }

/* Kahraman görseli tam genişlikte (kenardan kenara) durur: 1580px'lik kare
   1440px ekranda yalnızca ~0.91x küçülür, UI metni okunur kalır. Dar
   sütunlara sığdırmak onu 0.3x'e indirip okunamaz yapıyordu — bu sitenin
   tek ciddi hatasıydı, düzeltildi. */
.hero-bleed { max-width: 1580px; margin: 56px auto 0; }
.hero-bleed .shot { margin: 0; position: relative; }
.shot { margin: 0; }
.shot img {
  display: block; width: 100%; height: auto;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: 0 1px 2px rgba(6,12,14,.05), 0 12px 32px -12px rgba(6,12,14,.18);
}
/* Doğal çözünürlükte gösterilen kırpımlar: siteye göre küçültülmez,
   çünkü küçültme bu ürünün metnini okunamaz hale getiriyordu. */
.shot-native img {
  width: auto; max-width: 100%; height: auto;
  border-radius: var(--r-md);
}

.callout {
  position: absolute; width: 30px; height: 30px; border-radius: 50%;
  background: var(--brand); color: var(--on-brand);
  font-size: 15px; font-weight: 620; display: flex; align-items: center; justify-content: center;
  border: 3px solid var(--bg);
  box-shadow: 0 2px 8px rgba(6,12,14,.25);
}
.c1 { left: 12%; top: 19%; }   /* adım listesi */
.c2 { left: 78%; top: 70%; }   /* komut çubuğu balonu */
.c3 { left: 82%; top: 91%; }   /* sayaçlar */

.legend { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 7px; font-size: 13.5px; color: var(--muted); }
.legend li { display: flex; gap: 9px; align-items: baseline; }
.legend b {
  flex: none; width: 19px; height: 19px; border-radius: 50%;
  background: var(--brand); color: var(--on-brand);
  font-size: 11px; font-weight: 620; display: inline-flex; align-items: center; justify-content: center;
  transform: translateY(2px);
}

/* ---------- Kanıt ---------- */

.proof { border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); background: var(--surface); }
.proof-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.stat { padding: 34px 26px; border-left: 1px solid var(--border); }
.stat:first-child { border-left: none; padding-left: 0; }
.stat .num {
  display: block; font-size: clamp(30px, 3vw, 40px); font-weight: 580; letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums; color: var(--text);
}
.stat .lbl { display: block; margin-top: 8px; font-size: 13.5px; line-height: 1.45; color: var(--muted); }

/* ---------- Özellikler ---------- */

.section-title { font-size: clamp(28px, 3.2vw, 38px); letter-spacing: -0.02em; }
.features { padding: 96px 0 20px; }
.features .section-title { margin-bottom: 64px; }

.feature {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: 64px; align-items: center; padding: 40px 0 56px;
}
.feature.rev .feature-copy { order: 2; }
.feature.rev .shot { order: 1; }

/* Tam genişlik "kırıcı" blok: metin ortada dar, görsel altında tam ölçüde.
   Kayıt görseli 1:1 durur — okunurluk bu bölümün bütün amacı. */
.feature-break { padding: 40px 0 56px; }
.feature-break .feature-copy { max-width: 760px; }
.feature-break .shot-full { margin: 34px 0 0; }
.shot-full img {
  display: block; width: 100%; max-width: 1062px; height: auto;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: 0 1px 2px rgba(6,12,14,.05), 0 12px 32px -12px rgba(6,12,14,.18);
}
.feature-copy .label {
  margin: 0 0 10px; font-size: 12.5px; font-weight: 600; letter-spacing: 0.09em;
  text-transform: uppercase; color: var(--brand);
}
.feature-copy h3 { font-size: clamp(23px, 2.4vw, 30px); }
.feature-copy p { margin: 16px 0 0; color: var(--muted); max-width: var(--measure); }
.feature-copy .fine { font-size: 14px; color: var(--faint); }
figcaption { margin-top: 14px; font-size: 13.5px; color: var(--faint); max-width: 60ch; }

/* ---------- Döngü ---------- */

.loop { padding: 72px 0 96px; border-top: 1px solid var(--border-soft); margin-top: 40px; }
.loop .section-title { margin-bottom: 46px; }
.loop-steps { list-style: none; counter-reset: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 34px; }
.loop-steps li { padding-top: 20px; border-top: 2px solid var(--text); font-size: 15px; color: var(--muted); }
.loop-steps .n { display: block; font-family: var(--mono); font-size: 13px; color: var(--brand); margin-bottom: 8px; }
.loop-steps b { color: var(--text); font-weight: 600; }

/* ---------- Nerede çalışır ---------- */

.works { padding: 88px 0; border-top: 1px solid var(--border-soft); }
.works .section-title { margin-bottom: 46px; }
.works-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--border); }
.work { padding: 30px 30px 34px 0; border-bottom: 1px solid var(--border); }
.work:not(:nth-child(3n)) { border-right: 1px solid var(--border); padding-right: 30px; }
.work:nth-child(3n) { padding-left: 30px; }
.work:nth-child(3n+2) { padding-left: 30px; }
.work h3 { font-size: 18px; }
.work p { margin: 10px 0 0; font-size: 14.5px; color: var(--muted); }

/* ---------- Denetim ---------- */

.control { padding: 88px 0; background: var(--surface); border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); }
.control .section-title { margin-bottom: 46px; }
.control-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px 44px; }
.c-item { border-top: 1px solid var(--border); padding-top: 18px; }
.c-item h3 { font-size: 16.5px; }
.c-item p { margin: 8px 0 0; font-size: 14.5px; color: var(--muted); }

/* ---------- Fiyat ---------- */

.price { padding: 84px 0; }
.price-in { max-width: 720px; }
.price h2 { font-size: clamp(26px, 3vw, 36px); }
.price p { margin: 18px 0 0; color: var(--muted); max-width: 58ch; }

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

.faq { padding: 20px 0 96px; }
.faq-grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: 64px; }
.faq-list details { border-bottom: 1px solid var(--border); }
.faq-list details:first-child { border-top: 1px solid var(--border); }
.faq-list summary {
  cursor: pointer; list-style: none; padding: 20px 0;
  font-size: 17px; font-weight: 560; display: flex; justify-content: space-between; align-items: center; gap: 20px;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; font-family: var(--mono); color: var(--brand); font-size: 19px; font-weight: 400; }
.faq-list details[open] summary::after { content: "–"; }
.faq-list details p { margin: 0 0 22px; color: var(--muted); font-size: 15.5px; max-width: var(--measure); }

/* ---------- Kapanış ---------- */

.closing { padding: 104px 0 116px; border-top: 1px solid var(--border-soft); }
.closing-in { text-align: center; }
.closing-line { margin: 0; font-size: clamp(32px, 4.4vw, 54px); font-weight: 560; letter-spacing: -0.025em; line-height: 1.12; }
.closing .cta-row { justify-content: center; margin-top: 34px; }

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

.foot { border-top: 1px solid var(--border); padding: 56px 0 34px; }
.foot-grid { display: grid; grid-template-columns: minmax(0, 5fr) repeat(3, minmax(0, 2fr)); gap: 44px; }
.foot-brand { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-weight: 620; font-size: 17px; }
.foot-brand .fine { flex-basis: 100%; margin: 6px 0 0; font-size: 13.5px; color: var(--faint); font-weight: 400; max-width: 44ch; }
.foot h4 { font-size: 12.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint); font-weight: 600; margin-bottom: 14px; }
.foot nav { display: flex; flex-direction: column; gap: 9px; font-size: 14.5px; }
.foot nav a { color: var(--muted); }
.foot nav a:hover { color: var(--text); }
.foot-fine {
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  margin-top: 52px; padding-top: 22px; border-top: 1px solid var(--border-soft);
  font-family: var(--mono); font-size: 12.5px; color: var(--faint);
}

/* ---------- Giriş animasyonu (bir kez, asla döngü yok) ---------- */

.reveal, .hero-shot, .proof-row, .loop-steps, .closing-in {
  opacity: 0; transform: translateY(20px);
  transition: opacity 700ms cubic-bezier(.16,1,.3,1), transform 700ms cubic-bezier(.16,1,.3,1);
}
.reveal.gorundu, .hero-shot.gorundu, .proof-row.gorundu, .loop-steps.gorundu, .closing-in.gorundu {
  opacity: 1; transform: none;
}
.callout { opacity: 0; transition: opacity 300ms ease; transition-delay: 600ms; }
.hero-shot.gorundu .callout { opacity: 1; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, .hero-shot, .proof-row, .loop-steps, .closing-in, .callout {
    opacity: 1 !important; transform: none !important; transition: none !important;
  }
}

/* ---------- Duyarlı ---------- */

@media (max-width: 980px) {
  .hero-bleed { margin-top: 44px; }
  .proof-row { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: none; }
  .feature { grid-template-columns: 1fr; gap: 30px; }
  .feature.rev .feature-copy { order: 1; }
  .feature.rev .shot { order: 2; }
  .loop-steps { grid-template-columns: repeat(2, 1fr); }
  .works-grid { grid-template-columns: repeat(2, 1fr); }
  .work, .work:nth-child(3n), .work:nth-child(3n+2) { padding: 26px 0 30px; border-right: none; }
  .work:not(:nth-child(3n)) { border-right: none; }
  .control-list { grid-template-columns: repeat(2, 1fr); }
  .faq-grid { grid-template-columns: 1fr; gap: 30px; }
  .foot-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .wrap { padding: 0 20px; }
  .top nav { gap: 18px; font-size: 14px; }
  .top nav a:not(.nav-gh) { display: none; }
  .hero { padding: 60px 0 56px; }
  /* Dar ekranda ürün görselleri okunamayacak kadar küçülmesin: doğal
     boyutunda kalır, yatay kaydırılır. Metin okunur, kullanıcı kaydırır. */
  .shot-full, .feature .shot { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .shot-full img, .shot-native img { width: auto; max-width: none; }
  /* Kahraman da mobilde kendi adım metnini okutmalı: kendi belgesi
     genişliğinde kalsın, kırpılmasın. */
  .hero-bleed { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .hero-bleed img { width: 1580px; max-width: none; }
  .proof-row { grid-template-columns: 1fr; }
  .stat, .stat:first-child { border-left: none; border-top: 1px solid var(--border); padding: 22px 0; }
  .stat:first-child { border-top: none; }
  .loop-steps { grid-template-columns: 1fr; }
  .works-grid { grid-template-columns: 1fr; }
  .control-list { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
}