/* Yazı tipleri sayfayla birlikte gelir (IBM Plex, SIL OFL); dış kaynak yok */
@font-face { font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 400; font-display: swap; src: url(fonts/ibm-plex-sans-latin-ext-400-normal.woff2) format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 400; font-display: swap; src: url(fonts/ibm-plex-sans-latin-400-normal.woff2) format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 500; font-display: swap; src: url(fonts/ibm-plex-sans-latin-ext-500-normal.woff2) format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 500; font-display: swap; src: url(fonts/ibm-plex-sans-latin-500-normal.woff2) format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 600; font-display: swap; src: url(fonts/ibm-plex-sans-latin-ext-600-normal.woff2) format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 600; font-display: swap; src: url(fonts/ibm-plex-sans-latin-600-normal.woff2) format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url(fonts/ibm-plex-mono-latin-ext-400-normal.woff2) format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url(fonts/ibm-plex-mono-latin-400-normal.woff2) format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
/* Koyu tema şimdilik kapalı: koyu bloklardaki "and (max-width: 0px)" koşulu hiçbir zaman eşleşmez; silinince geri açılır */
/* Uygulamayla aynı görsel dil: kâğıt zemin, beyaz yüzeyler, sıcak griler, mavi vurgu, koyu üst çubuk */
:root {
  --bg: #f5f4f1;
  --bg-soft: #fbfaf8;
  --bg-card: #ffffff;
  --text: #1c1d20;
  --muted: #55565a;
  --faint: #6b6b66;
  --line: #e3e1db;
  --line-soft: #f0eee9;
  --brand: #215da5;
  --brand-strong: #0b4c92;
  --brand-soft: #eef4fc;
  --ok: #2b7a43;
  --ok-soft: #e3f3e7;
  --ink: #1c1d20;
  --ink-2: #2c2e32;
  --ink-text: #f3f2ee;
  --shadow: 0 20px 50px -24px rgba(20, 20, 25, .28);
  --radius: 10px;
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) and (max-width: 0px) {
  :root {
    --bg: #141518;
    --bg-soft: #19191c;
    --bg-card: #1c1d20;
    --text: #f3f2ee;
    --muted: #a9aaa6;
    --faint: #7d7e7a;
    --line: #2c2e32;
    --line-soft: #26272b;
    --brand: #4c88d3;
    --brand-strong: #69a1e8;
    --brand-soft: #1b2a3d;
    --ok: #5cbf7a;
    --ok-soft: #17301f;
    --shadow: 0 20px 50px -20px rgba(0, 0, 0, .7);
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 'IBM Plex Sans', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
/* Klavyeyle gezinmede odak halkası; koyu üst çubukta açık mavi */
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 4px; }
header :focus-visible { outline-color: #69a1e8; }
.nowrap { white-space: nowrap; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* Üst çubuk: uygulamadaki gibi koyu */
header { position: sticky; top: 0; z-index: 10; background: var(--ink); color: var(--ink-text); }
@media (prefers-color-scheme: dark) and (max-width: 0px) { header { border-bottom: 1px solid var(--line); } }
.bar { display: flex; align-items: center; gap: 28px; height: 60px; }
.logo { display: flex; align-items: center; gap: 9px; font-weight: 600; font-size: 17px; letter-spacing: -.01em; }
/* Logo simgesi: favicon ile aynı */
.logo::before { content: ""; width: 22px; height: 22px; flex: none; background: url("data:image/svg+xml,%3Csvg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 32 32%22%3E%3Crect width=%2232%22 height=%2232%22 rx=%227%22 fill=%22%234c88d3%22/%3E%3Cpath d=%22M7 11l9 6 9-6M7 10h18v12H7z%22 fill=%22none%22 stroke=%22white%22 stroke-width=%222%22 stroke-linejoin=%22round%22/%3E%3C/svg%3E") center / contain no-repeat; }
nav.links { display: flex; gap: 22px; margin-left: auto; font-size: 14px; color: #a9aaa6; }
nav.links a:hover { color: var(--ink-text); }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: 7px; font-weight: 500; font-size: 15px;
  border: 1px solid transparent; transition: background .15s, border-color .15s;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-strong); }
.btn-ghost { border-color: var(--line); background: var(--bg-card); }
.btn-ghost:hover { border-color: var(--faint); }
.btn-sm { padding: 7px 14px; font-size: 13px; }
header .btn-primary { background: #4c88d3; }
header .btn-primary:hover { background: #69a1e8; }
header .btn-ghost { background: var(--ink-2); border-color: #3a3c41; color: var(--ink-text); }
header .btn-ghost:hover { border-color: #7d7e7a; }

/* Giriş bölümü */
.hero { padding: 84px 0 76px; }
.hero-grid { display: grid; grid-template-columns: 1fr 1.08fr; gap: 56px; align-items: center; }
.hero-grid > * { min-width: 0; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 4px 10px; border-radius: 5px; font-size: 13px; font-weight: 500;
  color: var(--muted); background: var(--bg-card); border: 1px solid var(--line);
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); }
h1 { font-size: clamp(36px, 5vw, 52px); line-height: 1.08; letter-spacing: -.025em; font-weight: 600; margin: 18px 0 18px; text-wrap: balance; }
h1 em { font-style: normal; color: var(--brand); }
.lead { font-size: 18px; color: var(--muted); max-width: 34em; margin: 0 0 30px; text-wrap: pretty; }
.cta { display: flex; gap: 10px; flex-wrap: wrap; }
/* Kanıt satırı: masaüstünde tek sıra; dar ekranda öğeler alt alta sarılır, kısaltmalar bölünmez */
.facts { display: flex; gap: 12px 24px; margin-top: 36px; color: var(--muted); font-size: 13px; flex-wrap: wrap; }
.facts b { display: block; color: var(--text); font-size: 13px; font-weight: 500; font-family: var(--mono); letter-spacing: -.02em; white-space: nowrap; }

/* Webmail önizlemesi (yalnızca CSS; uygulamanın görünümü) */
.mock {
  border-radius: 12px; border: 1px solid var(--line); background: var(--bg-card);
  box-shadow: var(--shadow); overflow: hidden; font-size: 13px;
}
.mock-top { display: flex; align-items: center; gap: 8px; padding: 0 12px; height: 38px; background: var(--ink); color: var(--ink-text); }
.mock-top::before { content: ""; width: 16px; height: 16px; flex: none; background: url("data:image/svg+xml,%3Csvg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 32 32%22%3E%3Crect width=%2232%22 height=%2232%22 rx=%227%22 fill=%22%234c88d3%22/%3E%3Cpath d=%22M7 11l9 6 9-6M7 10h18v12H7z%22 fill=%22none%22 stroke=%22white%22 stroke-width=%222%22 stroke-linejoin=%22round%22/%3E%3C/svg%3E") center / contain no-repeat; }
.mock-top b { font-weight: 600; font-size: 13px; }
.mock-top span { margin-left: auto; color: #a9aaa6; font-size: 11px; font-family: var(--mono); }
.mock-top i { width: 20px; height: 20px; border-radius: 50%; background: #42926b; }
.mock-body { display: grid; grid-template-columns: 148px 1fr; min-height: 300px; }
.mock-side { border-right: 1px solid var(--line); padding: 10px 8px; background: var(--bg); }
.mock-compose { margin: 0 0 12px; padding: 7px 10px; border-radius: 7px; background: var(--brand); color: #fff; font-weight: 500; text-align: center; }
.mock-folder { display: flex; justify-content: space-between; padding: 5px 9px; border-radius: 6px; color: var(--muted); }
.mock-folder span + span { color: var(--brand); font-weight: 600; font-size: 12px; }
.mock-folder.on { background: #e8e6e0; color: var(--text); font-weight: 600; }
@media (prefers-color-scheme: dark) and (max-width: 0px) { .mock-folder.on { background: var(--line); } }
.mock-group { margin: 12px 9px 4px; font-size: 10px; text-transform: uppercase; letter-spacing: .06em; color: var(--faint); }
.mock-list { padding: 0; }
.mock-msg { display: grid; grid-template-columns: 26px 1fr auto; gap: 1px 10px; padding: 9px 14px; border-bottom: 1px solid var(--line-soft); }
.mock-msg::before { content: attr(data-i); grid-row: span 2; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; font-size: 10px; font-weight: 600; color: #fff; background: var(--av, #6f8fb8); }
.mock-msg[data-av="1"] { --av: #4c88d3; }
.mock-msg[data-av="2"] { --av: #42926b; }
.mock-msg[data-av="3"] { --av: #b0803a; }
.mock-msg[data-av="4"] { --av: #3d93a8; }
.mock-msg[data-av="5"] { --av: #8c6cc0; }
.mock-msg b { font-weight: 400; }
.mock-msg.unread b, .mock-msg.unread p { font-weight: 600; color: var(--text); }
.mock-msg small { color: var(--faint); font-size: 11px; }
.mock-msg p { grid-column: 2 / -1; margin: 0; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mock-msg.sel { background: var(--brand-soft); box-shadow: inset 3px 0 0 var(--brand); }
.mock-rsvp { grid-column: 2 / -1; display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.mock-rsvp em { font-style: normal; font-size: 11px; padding: 2px 8px; border-radius: 5px; border: 1px solid var(--line); background: var(--bg-card); color: var(--muted); }
.mock-rsvp em.yes { border-color: var(--brand); background: var(--brand); color: #fff; font-weight: 500; }

/* Bölümler: kâğıt zemin, aralarda beyaz bantlar */
section { padding: 84px 0; }
section.soft { background: var(--bg-card); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.head { max-width: 640px; margin-bottom: 40px; }
.head .kicker { color: var(--faint); font-weight: 500; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
h2 { font-size: clamp(28px, 3.4vw, 36px); line-height: 1.15; letter-spacing: -.02em; font-weight: 600; margin: 10px 0 12px; text-wrap: balance; }
.head p { color: var(--muted); font-size: 17px; margin: 0; text-wrap: pretty; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; transition: border-color .15s;
}
.card:hover { border-color: var(--faint); }
section.soft .card, section.soft .check, section.soft .limits, section.soft .layer, section.soft .chip, section.soft .feat { background: var(--bg-soft); }
.icon {
  width: 38px; height: 38px; border-radius: 8px; display: grid; place-items: center;
  background: var(--brand-soft); color: var(--brand); margin-bottom: 14px;
}
.icon svg { width: 20px; height: 20px; }
.card h3 { margin: 0 0 6px; font-size: 17px; font-weight: 600; letter-spacing: -.01em; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card ul { margin: 12px 0 0; padding: 0; list-style: none; font-size: 14px; color: var(--muted); }
.card li { padding: 3px 0 3px 22px; position: relative; }
.card li::before {
  content: ""; position: absolute; left: 2px; top: 10px; width: 10px; height: 6px;
  border-left: 2px solid var(--ok); border-bottom: 2px solid var(--ok); transform: rotate(-45deg);
}

/* Güvenlik iki sütun */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; align-items: start; }
.checks { display: grid; gap: 14px; }
.check { display: flex; gap: 14px; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-card); }
.check .icon { margin: 0; flex: none; width: 36px; height: 36px; }
.check h4 { margin: 0 0 4px; font-size: 16px; font-weight: 600; }
.check p { margin: 0; color: var(--muted); font-size: 14px; }
.limits { border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-card); padding: 18px 20px; }
.limits h4 { margin: 0 0 4px; font-weight: 600; }
.limits > p { margin: 0 0 18px; color: var(--muted); font-size: 14px; }
.tier { display: flex; align-items: center; gap: 14px; padding: 12px 0; border-top: 1px solid var(--line-soft); }
.tier:first-of-type { border-top: 0; }
.tier .lvl { width: 92px; font-weight: 500; font-size: 14px; }
.tier .val { flex: 1; height: 4px; border-radius: 2px; background: var(--line); overflow: hidden; }
.tier .val i { display: block; height: 100%; border-radius: 2px; background: var(--brand); }
.tier .val i.w100 { width: 100%; }
.tier .val i.w64 { width: 64%; }
.tier .val i.w30 { width: 30%; }
.tier small { width: 120px; text-align: right; color: var(--muted); font-family: var(--mono); font-size: 12px; }
.note { margin-top: 16px; font-size: 13px; color: var(--muted); }
.note code { font-family: var(--mono); font-size: .92em; }

/* İstemciler */
.clients { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { padding: 8px 14px; border-radius: 7px; border: 1px solid var(--line); background: var(--bg-card); font-weight: 500; font-size: 14px; }
.chip span { color: var(--muted); font-weight: 400; margin-left: 6px; }

/* Altyapı */
.stack { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.layer { border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; background: var(--bg-card); }
.layer b { display: block; margin-bottom: 4px; font-weight: 600; }
.layer small { color: var(--muted); font-size: 13px; }


/* Son çağrı ve alt bilgi */
.final { text-align: center; }
.final h2 { margin-top: 0; }
.final p { color: var(--muted); margin: 0 auto 28px; max-width: 36em; }
.final .cta { justify-content: center; }
.final .contact { margin: 16px auto 0; font-size: 14px; }
.final .contact a { color: var(--brand); }
.final .contact a:hover { text-decoration: underline; }
footer { padding: 28px 0; color: var(--faint); font-size: 13px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer nav { display: flex; gap: 18px; }
footer a:hover { color: var(--text); }

@media (max-width: 960px) {
  .hero-grid, .split { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr 1fr; }
  .stack { grid-template-columns: 1fr 1fr; }
  nav.links { display: none; }
  .bar .btn-primary { margin-left: auto; }
}
@media (max-width: 600px) {
  .wrap { padding: 0 16px; }
  .hero { padding: 52px 0 48px; }
  section { padding: 60px 0; }
  .grid, .stack { grid-template-columns: 1fr; }
  .mock-body { grid-template-columns: 1fr; }
  .mock-side { display: none; }
  .tier small { width: 92px; }
}

/* Çok sayfalı düzen: menüde bulunulan sayfa, alt sayfa başlığı */
nav.links a[aria-current="page"] { color: var(--ink-text); }
.head h1 { font-size: clamp(32px, 4.4vw, 44px); line-height: 1.12; margin: 10px 0 12px; }
.notfound { padding: 120px 0; text-align: center; }
.notfound p { color: var(--muted); margin: 0 0 28px; }
.notfound .cta { justify-content: center; }

/* Dar ekran menüsü: betiksiz açılır liste (details/summary) */
.menu { display: none; position: relative; }
.menu summary {
  list-style: none; cursor: pointer; display: grid; place-items: center; width: 36px; height: 36px;
  border-radius: 7px; border: 1px solid #3a3c41; background: var(--ink-2); color: var(--ink-text);
}
.menu summary::-webkit-details-marker { display: none; }
.menu summary svg { width: 18px; height: 18px; }
.menu[open] summary { border-color: #7d7e7a; }
.menu-panel {
  position: absolute; right: 0; top: calc(100% + 12px); min-width: 200px; display: grid; padding: 6px;
  background: var(--ink); border: 1px solid #3a3c41; border-radius: var(--radius); box-shadow: var(--shadow);
}
.menu-panel a { padding: 9px 12px; border-radius: 6px; font-size: 15px; color: #a9aaa6; }
.menu-panel a:hover, .menu-panel a[aria-current="page"] { background: var(--ink-2); color: var(--ink-text); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

@media (max-width: 960px) {
  .bar { gap: 12px; }
  .menu { display: block; }
}
@media (max-width: 600px) {
  .notfound { padding: 72px 0; }
}

/* Özellikler: sayfa başı, yapışkan grup gezinmesi; bağlantıyla gelinen grup başlığı çubukların altında kalmaz */
section.page-head { padding: 84px 0 28px; }
section.page-head .head { margin-bottom: 0; }
section[id] { scroll-margin-top: 108px; }
.subnav { position: sticky; top: 60px; z-index: 5; background: var(--bg); border-bottom: 1px solid var(--line); }
.subnav .wrap { display: flex; gap: 8px; padding-top: 10px; padding-bottom: 10px; overflow-x: auto; }
.subnav a { flex: none; padding: 6px 12px; border-radius: 6px; font-size: 14px; font-weight: 500; color: var(--muted); border: 1px solid var(--line); background: var(--bg-card); }
.subnav a:hover { color: var(--text); border-color: var(--faint); }
section.page-head + .subnav + section { padding-top: 56px; }
.head h2:first-child { margin-top: 0; }

/* Bölüm başlığı ve önizleme yan yana, kartlar altta dörtlü sıra */
.with-mock { display: grid; grid-template-columns: 1fr 1.15fr; gap: 56px; align-items: center; margin-bottom: 40px; }
.with-mock > * { min-width: 0; }
.with-mock .head { margin-bottom: 0; }
.grid.four { grid-template-columns: repeat(4, 1fr); }
.grid.two { grid-template-columns: 1fr 1fr; }

/* Serbest/meşgul çizelgesi önizlemesi */
.fb-body { padding: 14px 16px 16px; }
.fb-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 12px; }
.fb-head b { font-weight: 600; font-size: 14px; }
.fb-head small { color: var(--faint); font-size: 12px; }
.fb-row { display: grid; grid-template-columns: 124px 1fr; align-items: center; gap: 10px; height: 34px; }
.fb-row > span { font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fb-row > span small { color: var(--faint); margin-left: 4px; }
.fb-line { display: grid; grid-template-columns: repeat(16, 1fr); height: 22px; border-radius: 4px; background: repeating-linear-gradient(90deg, var(--line-soft) 0 1px, transparent 1px 12.5%); background-color: var(--bg); border: 1px solid var(--line-soft); }
/* Çubuklar 16 sütunluk (yarım saatlik) ızgarada: cN başlangıç sütunu, sN genişlik; hepsi aynı satırda üst üste */
.fb-line i { grid-row: 1; margin: 3px 0; border-radius: 3px; background: #c9ced6; }
.fb-line i.sel { border: 2px solid var(--brand); margin: -4px 0; background: rgba(33, 93, 165, .1); }
.fb-line .c1 { grid-column-start: 1; } .fb-line .c2 { grid-column-start: 2; } .fb-line .c3 { grid-column-start: 3; }
.fb-line .c6 { grid-column-start: 6; } .fb-line .c7 { grid-column-start: 7; } .fb-line .c9 { grid-column-start: 9; }
.fb-line .c11 { grid-column-start: 11; } .fb-line .c13 { grid-column-start: 13; } .fb-line .c15 { grid-column-start: 15; }
.fb-line .s2 { grid-column-end: span 2; } .fb-line .s3 { grid-column-end: span 3; } .fb-line .s4 { grid-column-end: span 4; }
.fb-hours { display: grid; grid-template-columns: 124px 1fr; gap: 10px; margin-bottom: 4px; }
.fb-hours div { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 10px; color: var(--faint); }
.fb-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line-soft); font-size: 12px; color: var(--muted); }
.fb-foot b { color: var(--text); font-weight: 600; }
.fb-line i.maybe, .fb-legend i.maybe { background: repeating-linear-gradient(135deg, #c9ced6 0 4px, #e6e9ee 4px 8px); }
.fb-legend { display: flex; gap: 14px; margin-top: 10px; font-size: 11px; color: var(--faint); }
.fb-legend span { display: inline-flex; align-items: center; gap: 6px; }
.fb-legend i { width: 14px; height: 8px; border-radius: 2px; background: #c9ced6; }
.fb-legend i.sel { background: rgba(33, 93, 165, .1); border: 2px solid var(--brand); }
.fb-foot em { font-style: normal; padding: 5px 12px; border-radius: 6px; background: var(--brand); color: #fff; font-weight: 500; }

/* Yönetim paneli önizlemesi (ana sayfa) */
.mock-panel .mock-body { grid-template-columns: 150px 1fr; min-height: 0; }
.pn-main { padding: 14px 16px 16px; }
.pn-title { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.pn-title b { font-size: 15px; font-weight: 600; }
.pill { display: inline-block; padding: 1px 8px; border-radius: 4px; font-size: 11px; font-weight: 500; }
.pill.ok { background: var(--ok-soft); color: var(--ok); }
.pill.warn { background: #fbe9e7; color: #a33a2b; }
.pn-tabs { display: flex; gap: 16px; border-bottom: 1px solid var(--line); margin-bottom: 12px; font-size: 12px; color: var(--muted); }
.pn-tabs span { padding-bottom: 7px; white-space: nowrap; }
.pn-tabs span.on { color: var(--text); font-weight: 600; box-shadow: inset 0 -2px 0 var(--brand); }
.pn-note { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 10px; font-size: 12px; color: var(--muted); }
.pn-note em { flex: none; font-style: normal; padding: 3px 10px; border-radius: 6px; border: 1px solid var(--line); color: var(--text); }
.pn-dns { border: 1px solid var(--line); border-radius: 7px; overflow: hidden; }
.pn-dns div { display: grid; grid-template-columns: 96px 1fr auto; gap: 10px; align-items: center; padding: 7px 10px; border-top: 1px solid var(--line-soft); }
.pn-dns div:first-child { border-top: 0; background: var(--bg); color: var(--faint); font-size: 11px; text-transform: uppercase; letter-spacing: .05em; }
.pn-dns code { font-family: var(--mono); font-size: 11px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.panel-text .head { margin-bottom: 0; }
.panel-text ul { margin: 18px 0 24px; padding: 0; list-style: none; color: var(--muted); }
.panel-text li { padding: 4px 0 4px 24px; position: relative; }
.panel-text li::before { content: ""; position: absolute; left: 3px; top: 12px; width: 10px; height: 6px; border-left: 2px solid var(--ok); border-bottom: 2px solid var(--ok); transform: rotate(-45deg); }


@media (max-width: 960px) {
  .with-mock { grid-template-columns: 1fr; gap: 28px; }
  .grid.four { grid-template-columns: 1fr 1fr; }
  .panel-text { order: -1; }
}
@media (max-width: 600px) {
  section.page-head { padding: 52px 0 20px; }
  .grid.four, .grid.two { grid-template-columns: 1fr; }
  .fb-row, .fb-hours { grid-template-columns: 84px 1fr; }
  .mock-panel .mock-body { grid-template-columns: 1fr; }
  .pn-dns div { grid-template-columns: 70px 1fr auto; }
}

/* Ana sayfa ekran görüntüleri: üstte webmail ve telefon aynı yükseklikte (telefon 390x844, masaüstü 16:10), altta ikili.
   Telefonda tek sıra, yatay kaydırmalı (scroll-snap); her görüntü neredeyse tam genişlikte, sonraki kenardan görünür */
.gallery { display: grid; grid-template-columns: 3.46fr 1fr; gap: 16px; align-items: start; }
.gallery.two { grid-template-columns: 1fr 1fr; margin-top: 16px; }
.gallery figure { margin: 0; }
.gallery img { display: block; width: 100%; height: auto; border-radius: 10px; border: 1px solid var(--line); box-shadow: var(--shadow); background: var(--bg-card); }
.gallery figcaption { margin-top: 10px; font-size: 14px; color: var(--muted); }
@media (max-width: 600px) {
  .shots {
    display: flex; align-items: start; gap: 12px; overflow-x: auto; overscroll-behavior-x: contain;
    scroll-snap-type: x mandatory; scroll-padding: 0 16px; margin: 0 -16px; padding: 4px 16px 16px;
  }
  .shots .gallery { display: contents; }
  .shots figure { flex: 0 0 calc(100% - 24px); scroll-snap-align: start; }
  .shots img { box-shadow: none; }
  .shots .gallery:first-child figure + figure { flex-basis: auto; }
  .shots .gallery:first-child figure + figure img { width: auto; max-height: min(60vh, 440px); }
}

/* Ana sayfa: öne çıkan özellikler (kırpılmış ekran görüntüsü ya da adım şeması, başlık, kısa metin) */
.showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.feat { display: flex; flex-direction: column; background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: border-color .15s; }
.feat:hover { border-color: var(--faint); }
.feat > img, .flow { display: block; width: 100%; height: auto; aspect-ratio: 16 / 10; border-bottom: 1px solid var(--line); background: var(--bg); }
.feat-text { flex: 1; display: flex; flex-direction: column; padding: 20px 22px 22px; }
.feat h3 { margin: 0 0 6px; font-size: 17px; font-weight: 600; letter-spacing: -.01em; }
.feat p { flex: 1; margin: 0; color: var(--muted); font-size: 15px; text-wrap: pretty; }
.feat code { font-family: var(--mono); font-size: .9em; }
.feat .more { margin-top: 14px; color: var(--brand); font-weight: 500; font-size: 14px; }
.feat:hover .more { text-decoration: underline; }
.flow { display: flex; flex-direction: column; justify-content: center; gap: 8px; padding: 24px 32px; }
.flow-step { display: flex; align-items: center; gap: 12px; padding: 9px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg-card); font-size: 14px; }
.flow-step b { flex: none; width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; background: var(--brand-soft); color: var(--brand); font-size: 12px; font-weight: 600; }
.flow-end { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.flow-end span { padding: 9px 12px; border-radius: 8px; font-size: 13px; font-weight: 500; }
.flow-end .ok { background: var(--ok-soft); color: var(--ok); }
.flow-end .back { background: #fbe9e7; color: #a33a2b; }

/* Ana sayfa: kendi adıyla bağlantı (geniş kart; adres çubuğu ve posta programının hesap ayarları, yalnızca CSS) */
.feat.wide { grid-column: 1 / -1; display: grid; grid-template-columns: 1.1fr 1fr; }
.feat.wide .feat-text { justify-content: center; }
.feat.wide p { flex: none; }
.own { display: grid; gap: 14px; align-content: center; min-width: 0; padding: 28px 32px; background: var(--bg); border-right: 1px solid var(--line); font-size: 13px; }
.own-browser, .own-app { border: 1px solid var(--line); border-radius: 8px; background: var(--bg-card); overflow: hidden; }
.own-bar { display: flex; align-items: center; gap: 6px; padding: 8px 10px; border-bottom: 1px solid var(--line-soft); }
.own-bar i { flex: none; width: 9px; height: 9px; border-radius: 50%; background: var(--line); }
.own-url { flex: 1; min-width: 0; display: flex; align-items: center; gap: 6px; margin-left: 6px; padding: 4px 10px; border-radius: 6px; background: var(--bg); font-family: var(--mono); font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; }
.own-url svg { flex: none; width: 12px; height: 12px; color: var(--ok); }
.own-url span { min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.own-url b, .own-row code b { color: var(--text); font-weight: 600; }
.own-page { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 12px 14px; color: var(--muted); }
.own-page b { color: var(--text); font-weight: 600; }
.own-page .pill { flex: none; }
.own-app { padding: 12px 14px 8px; }
.own-app h4 { margin: 0 0 6px; font-size: 13px; font-weight: 600; }
.own-row { display: grid; grid-template-columns: 96px 1fr; gap: 10px; padding: 6px 0; border-top: 1px solid var(--line-soft); }
.own-row span { color: var(--faint); }
.own-row code { display: block; min-width: 0; font-family: var(--mono); font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

@media (max-width: 600px) {
  .showcase { grid-template-columns: 1fr; }
  .flow { padding: 18px; }
  .feat.wide { grid-template-columns: 1fr; }
  .own { padding: 18px; border-right: 0; border-bottom: 1px solid var(--line); }
  .own-page span:first-child { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  /* Giriş bölümündeki webmail önizlemesi kısa: davet ve iki posta */
  .hero .mock-body { min-height: 0; }
  .hero .mock-msg:nth-child(n+4) { display: none; }
}

/* Teknik özellikler: tablolar ve standart listeleri */
.spec-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: start; }
.spec-grid > * { min-width: 0; }
.spec-grid h2 { font-size: 22px; margin: 0 0 14px; }
.spec-grid h2 ~ h2 { margin-top: 36px; }
.spec { width: 100%; border-collapse: separate; border-spacing: 0; background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; font-size: 14px; }
.spec th { text-align: left; font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--faint); background: var(--bg-soft); }
.spec th, .spec td { padding: 10px 14px; border-top: 1px solid var(--line-soft); vertical-align: top; }
.spec tr:first-child > * { border-top: 0; }
.spec thead + tbody tr:first-child > * { border-top: 1px solid var(--line-soft); }
.spec td:first-child { font-weight: 500; }
.spec td + td { color: var(--muted); }
.spec code, .card code { font-family: var(--mono); font-size: .92em; }
.spec td code { padding: 1px 6px; border-radius: 4px; background: var(--brand-soft); color: var(--brand-strong); white-space: nowrap; }
ul.std li { display: flex; justify-content: space-between; gap: 12px; }
ul.std li span { color: var(--faint); font-family: var(--mono); font-size: 12px; text-align: right; white-space: nowrap; }

/* İletişim formu; tuzak alan (site) ekran dışında, gerçek kullanıcı görmez */
.contact-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: start; }
section.page-head + .contact-section, section.page-head + .spec-section { padding-top: 28px; }
.form { display: grid; gap: 16px; padding: 24px; background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); }
.form label { display: grid; gap: 6px; font-size: 14px; font-weight: 500; }
.form label small { color: var(--faint); font-weight: 400; }
.form input, .form textarea { font: inherit; font-weight: 400; color: var(--text); padding: 10px 12px; border: 1px solid var(--line); border-radius: 7px; background: var(--bg-soft); }
.form textarea { resize: vertical; min-height: 140px; }
.form input:focus-visible, .form textarea:focus-visible { outline-offset: 0; border-color: var(--brand); }
.form .btn { justify-self: start; cursor: pointer; font: inherit; font-weight: 500; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.contact-aside h3 { margin: 0 0 6px; font-size: 16px; font-weight: 600; }
.contact-aside h3 ~ h3 { margin-top: 28px; }
.contact-aside p { margin: 0 0 8px; color: var(--muted); font-size: 15px; }
.contact-aside a { color: var(--brand); }
.contact-aside a:hover { text-decoration: underline; }
.contact-aside ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: 15px; }

@media (max-width: 960px) {
  .spec-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
}
@media (max-width: 600px) {
  .spec th, .spec td { padding: 9px 10px; }
}