@font-face {
  font-family: "Montserrat";
  src: url("fonts/montserrat-var.woff2") format("woff2");
  font-weight: 300 900;
  font-display: swap;
}

:root {
  --paper: #f6f4ef;
  --paper-2: #efece4;
  --white: #ffffff;
  --ink: #15202b;
  --ink-2: #3b4652;
  --muted: #66707a;
  --line: #dcd7cc;
  --petrol: #0d6670;
  --petrol-d: #084a52;
  --petrol-t: #e2efee;
  --amber: #f0a033;
  --amber-t: #fdf0dc;
  --wa: #1f9d55;
  --radius: 14px;
  --radius-s: 9px;
  --shadow: 0 1px 2px rgba(21, 32, 43, .06), 0 8px 24px rgba(21, 32, 43, .07);
  --wrap: 1160px;
  --gutter: 20px;
  color-scheme: light;
}

*, *::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: 400 17px/1.65 "Montserrat", system-ui, -apple-system, "Segoe UI", sans-serif;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--petrol); text-underline-offset: 3px; }
a:hover { color: var(--petrol-d); }
h1, h2, h3, h4 { line-height: 1.18; margin: 0 0 .5em; letter-spacing: -.02em; text-wrap: balance; }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); font-weight: 750; }
h3 { font-size: 1.18rem; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0 0 1em; text-wrap: pretty; }
ul { padding-left: 1.2em; }
:focus-visible { outline: 3px solid var(--amber); outline-offset: 2px; border-radius: 4px; }

.wrap { width: min(var(--wrap), 100% - 2 * var(--gutter)); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }

/* ---------- üst menü ---------- */
.top {
  position: sticky; top: 0; z-index: 50;
  background: rgba(246, 244, 239, .92);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.top .wrap { display: flex; align-items: center; gap: 24px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 800; letter-spacing: -.02em; font-size: 1.08rem; white-space: nowrap; }
.brand svg { flex: none; }
.brand small { display: block; font-size: .66rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-top: -2px; }
.nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.nav a { color: var(--ink-2); text-decoration: none; font-weight: 600; font-size: .92rem; padding: 8px 12px; border-radius: 8px; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--petrol); background: var(--petrol-t); }
.nav .btn { margin-left: 8px; }
.menu-btn { display: none; margin-left: auto; background: none; border: 1px solid var(--line); border-radius: 10px; width: 46px; height: 46px; cursor: pointer; color: var(--ink); }
.menu-btn svg { margin: auto; }

@media (max-width: 920px) {
  .menu-btn { display: grid; }
  .nav {
    position: absolute; left: 0; right: 0; top: 68px;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: 10px var(--gutter) 18px;
    display: none;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px; font-size: 1rem; }
  .nav .btn { margin: 8px 0 0; justify-content: center; }
}

/* ---------- butonlar ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font: inherit; font-weight: 700; font-size: .95rem; line-height: 1;
  padding: 15px 22px; border-radius: 999px; border: 0; cursor: pointer;
  text-decoration: none; transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--petrol); color: #fff; box-shadow: 0 6px 18px rgba(13, 102, 112, .25); }
.btn-primary:hover { background: var(--petrol-d); color: #fff; }
.btn-wa { background: var(--wa); color: #fff; }
.btn-wa:hover { background: #17834a; color: #fff; }
.btn-mail { background: var(--white); color: var(--petrol); box-shadow: inset 0 0 0 1.5px var(--petrol); }
.btn-mail:hover { background: var(--petrol-t); color: var(--petrol-d); }
.btn-ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--ink); }
.btn-ghost:hover { background: var(--ink); color: #fff; }
.nav .btn-primary { color: #fff; padding: 11px 18px; background: var(--petrol); }
.nav .btn-primary:hover { background: var(--petrol-d); color: #fff; }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; padding: 72px 0 84px; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(to bottom, rgba(13, 102, 112, .07) 1px, transparent 1px);
  background-size: 100% 28px;
  mask-image: linear-gradient(to bottom, #000 0%, transparent 85%);
}
.hero .wrap { position: relative; display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: .78rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--petrol); margin-bottom: 18px; }
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--amber); }
.hero h1 { isolation: isolate; }
.hero h1 em { font-style: normal; color: var(--petrol); position: relative; white-space: nowrap; }
.hero h1 em::after { content: ""; position: absolute; left: 0; right: 0; bottom: .06em; height: .16em; background: var(--amber); opacity: .55; z-index: -1; border-radius: 2px; }
.lead { font-size: 1.14rem; color: var(--ink-2); max-width: 36em; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 26px 0 0; padding: 0; list-style: none; }
.chips li { font-size: .82rem; font-weight: 600; color: var(--ink-2); background: var(--white); border: 1px solid var(--line); padding: 6px 12px; border-radius: 999px; }

/* sayfa yığını + kesim işaretleri */
.stack { position: relative; aspect-ratio: 4 / 4.4; max-width: 470px; margin-left: auto; width: 100%; }
.stack .sheet { position: absolute; width: 66%; border-radius: 6px; background: #fff; box-shadow: var(--shadow); overflow: hidden; border: 1px solid var(--line); }
.stack .sheet img { width: 100%; }
.stack .s1 { left: 0; top: 9%; transform: rotate(-6deg); opacity: .9; }
.stack .s2 { right: 0; top: 2%; transform: rotate(4deg); }
.stack .s3 { left: 17%; top: 15%; z-index: 2; box-shadow: 0 2px 4px rgba(0,0,0,.06), 0 24px 48px rgba(21,32,43,.18); }
.crop { position: absolute; width: 26px; height: 26px; border-color: var(--ink); opacity: .55; z-index: 3; }
.crop.tl { left: 10%; top: 7%; border-left: 1.5px solid; border-top: 1.5px solid; }
.crop.br { right: 6%; bottom: 3%; border-right: 1.5px solid; border-bottom: 1.5px solid; }
.badge-float { position: absolute; z-index: 4; left: 2%; bottom: 7%; background: var(--ink); color: #fff; border-radius: 12px; padding: 12px 16px; font-size: .82rem; font-weight: 600; box-shadow: var(--shadow); }
.badge-float b { display: block; color: var(--amber); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; }

@media (max-width: 920px) {
  .hero { padding: 44px 0 56px; }
  .hero .wrap { grid-template-columns: 1fr; gap: 40px; }
  .stack { margin: 0 auto; max-width: 380px; }
}

/* ---------- bölümler ---------- */
.section { padding: 84px 0; }
.section.alt { background: var(--white); border-block: 1px solid var(--line); }
.section.ink { background: var(--ink); color: #e9edf0; }
.section.ink h2 { color: #fff; }
.sec-head { max-width: 680px; margin-bottom: 40px; }
.sec-head p { color: var(--muted); font-size: 1.05rem; }
.section.ink .sec-head p { color: #aeb8c1; }
.section.ink .eyebrow { color: var(--amber); }
@media (max-width: 720px) { .section { padding: 60px 0; } }

.grid { display: grid; gap: 18px; }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) { .g3, .g4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .g3, .g2, .g4 { grid-template-columns: 1fr; } }

.card {
  position: relative; display: flex; flex-direction: column;
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; color: inherit; text-decoration: none;
  transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
a.card:hover { border-color: var(--petrol); transform: translateY(-3px); box-shadow: var(--shadow); color: inherit; }
.card p { color: var(--muted); font-size: .95rem; margin-bottom: 18px; }
.card .more { margin-top: auto; font-weight: 700; font-size: .9rem; color: var(--petrol); }
.ico { width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; background: var(--petrol-t); color: var(--petrol); margin-bottom: 18px; }
.ico.amber { background: var(--amber-t); color: #b26b07; }

.steps { counter-reset: s; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; list-style: none; padding: 0; margin: 0; }
.steps li { counter-increment: s; position: relative; padding: 22px 22px 22px; border-top: 3px solid var(--amber); background: rgba(255,255,255,.04); border-radius: 0 0 var(--radius-s) var(--radius-s); }
.steps li::before { content: "0" counter(s); display: block; font-weight: 800; font-size: 2rem; color: var(--amber); line-height: 1; margin-bottom: 14px; }
.steps h3 { color: #fff; }
.steps p { color: #aeb8c1; font-size: .94rem; margin: 0; }
@media (max-width: 980px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .steps { grid-template-columns: 1fr; } }

.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.checks li { position: relative; padding-left: 34px; color: var(--ink-2); }
.checks li::before { content: ""; position: absolute; left: 0; top: .2em; width: 22px; height: 22px; border-radius: 50%; background: var(--petrol-t) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230d6670' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center / 14px no-repeat; }
.checks.two { grid-template-columns: 1fr 1fr; gap: 12px 28px; }
@media (max-width: 620px) { .checks.two { grid-template-columns: 1fr; } }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; gap: 32px; } }

/* örnek işler */
.work { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; color: inherit; text-decoration: none; transition: transform .18s ease, box-shadow .18s ease; }
a.work:hover { transform: translateY(-3px); box-shadow: var(--shadow); color: inherit; }
.work .thumb { background: var(--paper-2); padding: 22px 22px 0; display: flex; align-items: flex-end; justify-content: center; aspect-ratio: 4 / 3.6; overflow: hidden; }
.work .thumb img { width: 78%; border-radius: 4px 4px 0 0; box-shadow: 0 10px 28px rgba(21,32,43,.16); }
.work .meta { padding: 18px 22px 22px; }
.work .tag { display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--petrol); margin-bottom: 6px; }
.work h3 { margin: 0 0 4px; font-size: 1.05rem; }
.work .meta span.small { color: var(--muted); font-size: .86rem; }
.work.soon .thumb { align-items: center; color: var(--muted); font-weight: 600; font-size: .9rem; padding: 22px; text-align: center;
  background: repeating-linear-gradient(135deg, var(--paper-2) 0 12px, var(--paper) 12px 24px); }
.work-detail { margin-top: 64px; scroll-margin-top: 90px; }
.work-detail .lead { margin-bottom: 4px; }
.small-note { color: var(--muted); font-size: .88rem; margin-bottom: 18px; }
.pages { display: flex; gap: 14px; overflow-x: auto; padding: 6px 2px 16px; scroll-snap-type: x mandatory; }
.aside-sample { display: block; margin-top: 18px; padding: 14px; background: var(--paper-2); border-radius: var(--radius-s); text-decoration: none; font-weight: 700; font-size: .9rem; }
.aside-sample img { width: 62%; margin: 0 auto 10px; border-radius: 3px; box-shadow: 0 8px 20px rgba(21,32,43,.16); }
.aside-sample span { display: block; text-align: center; }
/* önizlemeler: tek sayfa ve çift sayfa aynı yükseklikte */
.pages img { flex: none; height: clamp(300px, 52vw, 470px); width: auto; max-width: none; scroll-snap-align: start; border-radius: 6px; border: 1px solid var(--line); box-shadow: var(--shadow); background: #fff; }

/* sss */
.faq { display: grid; gap: 10px; }
.faq details { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-s); padding: 0 20px; }
.faq summary { cursor: pointer; list-style: none; padding: 18px 30px 18px 0; font-weight: 700; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%); font-size: 1.4rem; font-weight: 500; color: var(--petrol); }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--ink-2); padding-bottom: 6px; }

/* cta bandı */
.cta-band { background: var(--petrol); color: #fff; border-radius: 22px; padding: 46px; display: grid; grid-template-columns: 1.3fr auto; gap: 30px; align-items: center; position: relative; overflow: hidden; }
.cta-band::after { content: ""; position: absolute; right: -60px; top: -60px; width: 220px; height: 220px; border: 2px solid rgba(255,255,255,.14); border-radius: 50%; }
.cta-band h2 { color: #fff; margin-bottom: .3em; }
.cta-band p { color: #cfe5e6; margin: 0; }
.cta-band .cta-row { margin: 0; justify-content: flex-end; }
.cta-band .btn-ghost { color: #fff; box-shadow: inset 0 0 0 1.5px #fff; }
.cta-band .btn-ghost:hover { background: #fff; color: var(--petrol); }
.cta-band .btn-light { background: #fff; color: var(--petrol); }
@media (max-width: 820px) { .cta-band { grid-template-columns: 1fr; padding: 32px 24px; } .cta-band .cta-row { justify-content: flex-start; } }

/* iç sayfa başlığı */
.page-head { padding: 56px 0 44px; border-bottom: 1px solid var(--line); background:
  linear-gradient(to bottom, rgba(13,102,112,.06) 1px, transparent 1px) 0 0 / 100% 28px; }
.crumbs { font-size: .84rem; color: var(--muted); margin-bottom: 14px; }
.crumbs a { color: var(--muted); }
.page-head .lead { margin-bottom: 0; }
.prose { max-width: 760px; }
.prose h2 { font-size: 1.6rem; margin-top: 1.6em; }
.prose h3 { margin-top: 1.4em; }
.aside { position: sticky; top: 96px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.aside h3 { margin-bottom: .4em; }
.aside p { color: var(--muted); font-size: .94rem; }
.aside .btn { width: 100%; justify-content: center; margin-top: 10px; }
.layout { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 48px; align-items: start; }
@media (max-width: 960px) { .layout { grid-template-columns: 1fr; } .aside { position: static; } }

.note { background: var(--amber-t); border: 1px solid #f3d6a6; border-radius: var(--radius-s); padding: 14px 18px; font-size: .92rem; color: #6b4a12; }

/* form */
.form { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; display: grid; gap: 16px; grid-template-columns: 1fr 1fr; }
.form .full { grid-column: 1 / -1; }
.field label { display: block; font-weight: 700; font-size: .88rem; margin-bottom: 6px; }
.field label span { color: var(--muted); font-weight: 500; }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; font-size: 1rem; color: var(--ink);
  background: var(--paper); border: 1.5px solid var(--line); border-radius: 10px; padding: 12px 14px;
  transition: border-color .15s ease, background .15s ease;
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--petrol); background: #fff; }
.field .err { display: none; color: #b42318; font-size: .82rem; margin-top: 5px; }
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: #d92d20; }
.field.invalid .err { display: block; }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: .88rem; color: var(--ink-2); }
.consent input { margin-top: 4px; width: 18px; height: 18px; accent-color: var(--petrol); flex: none; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form .btn { justify-self: start; }
@media (max-width: 620px) { .form { grid-template-columns: 1fr; padding: 22px; } }

.contact-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.contact-list a { display: flex; gap: 14px; align-items: center; padding: 18px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-s); color: var(--ink); text-decoration: none; font-weight: 700; }
.contact-list a:hover { border-color: var(--petrol); }
.contact-list small { display: block; color: var(--muted); font-weight: 500; font-size: .84rem; }

/* rehber */
.tag-sm { display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--petrol); margin-bottom: 8px; }
.h1-article { font-size: clamp(1.8rem, 3.6vw, 2.7rem); max-width: 22em; }
.page-head .meta { color: var(--muted); font-size: .86rem; margin: 14px 0 0; }
.article { font-size: 1.04rem; }
.article h2 { font-size: 1.42rem; margin-top: 1.8em; }
.article h2:first-child { margin-top: 0; }
.article ul, .article ol { padding-left: 1.3em; margin: 0 0 1.2em; }
.article li { margin-bottom: .45em; }
.article table { width: 100%; border-collapse: collapse; margin: 6px 0 1.4em; font-size: .94rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-s); overflow: hidden; }
@media (max-width: 620px) { .article table { display: block; overflow-x: auto; } }
.article th, .article td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.article thead th { background: var(--petrol-t); color: var(--petrol-d); font-weight: 700; }
.article tr:last-child td { border-bottom: 0; }
.tip { background: var(--petrol-t); border-left: 3px solid var(--petrol); border-radius: 0 var(--radius-s) var(--radius-s) 0; padding: 14px 18px; margin: 4px 0 1.3em; font-size: .96rem; }
.article .note { margin: 4px 0 1.3em; }
.test-line { font-size: 1.15rem; font-weight: 600; letter-spacing: .01em; }
.checklist { list-style: none; padding: 0 !important; counter-reset: c; display: grid; gap: 8px; }
.checklist li { counter-increment: c; position: relative; padding: 12px 14px 12px 46px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-s); margin: 0 !important; }
.checklist li::before { content: counter(c); position: absolute; left: 12px; top: 11px; width: 24px; height: 24px; border-radius: 50%; background: var(--petrol); color: #fff; font-size: .78rem; font-weight: 700; display: grid; place-items: center; }
.calc .result { display: grid; grid-template-columns: 1fr 1.2fr 1.4fr; gap: 12px; }
.calc .result div { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-s); padding: 14px 16px; }
.calc .result span { display: block; font-size: .8rem; color: var(--muted); font-weight: 600; }
.calc .result b { font-size: 1.35rem; letter-spacing: -.01em; }
.calc .result .big { background: var(--petrol); border-color: var(--petrol); }
.calc .result .big span { color: #cfe5e6; }
.calc .result .big b { color: #fff; font-size: 1.7rem; }
@media (max-width: 620px) { .calc .result { grid-template-columns: 1fr; } }

/* fiyat */
.factor { border-left: 3px solid var(--amber); padding: 4px 0 4px 18px; }
.factor h3 { margin-bottom: .25em; }
.factor p { color: var(--muted); margin: 0; font-size: .95rem; }

/* alt bilgi */
.foot { background: var(--ink); color: #aeb8c1; padding: 64px 0 28px; margin-top: 0; font-size: .93rem; }
.foot .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
.foot h4 { color: #fff; font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 14px; }
.foot ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.foot a { color: #d5dce2; text-decoration: none; }
.foot a:hover { color: var(--amber); }
.foot .brand { color: #fff; margin-bottom: 12px; }
.foot .brand small { color: #8c98a3; }
.foot .bottom { border-top: 1px solid #2a3642; margin-top: 44px; padding-top: 22px; display: flex; flex-wrap: wrap; gap: 10px 24px; justify-content: space-between; font-size: .84rem; }
@media (max-width: 860px) { .foot .cols { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .foot .cols { grid-template-columns: 1fr; } }

/* sabit whatsapp */
.wa-float { position: fixed; right: 18px; bottom: 18px; z-index: 60; display: flex; align-items: center; gap: 8px; background: var(--wa); color: #fff; text-decoration: none; font-weight: 700; font-size: .92rem; padding: 13px 18px; border-radius: 999px; box-shadow: 0 10px 26px rgba(31,157,85,.35); }
.wa-float:hover { color: #fff; background: #17834a; }
@media (max-width: 520px) { .wa-float span { display: none; } .wa-float { padding: 14px; } }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }