:root {
    color-scheme: light dark;
    /* Açık tema: zemin kartlardan belirgin koyu ve renkli, kartlar mavi
       tonlu gölgeyle zeminden kalkıyor; aksi hâlde her şey aynı beyaza
       karışıp koyu temanın derinliği kayboluyordu. */
    --bg: #e4eaf7;
    --surface: #ffffff;
    --surface-2: #f2f6fd;
    --sidebar: rgba(236, 241, 252, .66);
    --border: #d9e2f2;
    --border-strong: #c3d1e8;
    --text: #17202e;
    --muted: #5d6b82;
    --accent: #2563eb;
    --accent-hover: #1d4fd7;
    --accent-soft: #e2ebfd;
    --danger: #c0392b;
    --warning: #9a6700;
    --success: #1a7f37;
    --shadow: 0 1px 0 rgba(255, 255, 255, .9) inset, 0 1px 2px rgba(30, 58, 138, .06),
              0 14px 36px -8px rgba(30, 64, 175, .16);
    --blob-1: rgba(79, 124, 255, .38);
    --blob-2: rgba(124, 92, 255, .22);
    --radius: 15px;
    --radius-sm: 9px;
  }
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
      --bg: #0c1017;
      --surface: #161d27;
      --surface-2: #1b232f;
      --sidebar: rgba(19, 25, 34, .72);
      --border: #253040;
      --border-strong: #35435a;
      --text: #e8edf5;
      --muted: #93a1b5;
      --accent: #5b91ff;
      --accent-hover: #7aa7ff;
      --accent-soft: #1b2942;
      --danger: #ff7369;
      --warning: #e3b341;
      --success: #3fb950;
      --shadow: 0 1px 0 rgba(255, 255, 255, .03) inset, 0 12px 34px rgba(0, 0, 0, .45);
      --blob-1: rgba(70, 110, 220, .22);
      --blob-2: rgba(40, 80, 180, .18);
    }
  }
  :root[data-theme="dark"] {
    --bg: #0c1017;
    --surface: #161d27;
    --surface-2: #1b232f;
    --sidebar: rgba(19, 25, 34, .72);
    --border: #253040;
    --border-strong: #35435a;
    --text: #e8edf5;
    --muted: #93a1b5;
    --accent: #5b91ff;
    --accent-hover: #7aa7ff;
    --accent-soft: #1b2942;
    --danger: #ff7369;
    --warning: #e3b341;
    --success: #3fb950;
    --shadow: 0 1px 0 rgba(255, 255, 255, .03) inset, 0 12px 34px rgba(0, 0, 0, .45);
    --blob-1: rgba(70, 110, 220, .22);
    --blob-2: rgba(40, 80, 180, .18);
  }
  * { box-sizing: border-box; }
  [hidden] { display: none !important; }
  body {
    margin: 0;
    color: var(--text);
    font: 400 15px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    background:
      radial-gradient(1000px 680px at 74% 6%, var(--blob-1), transparent 62%),
      radial-gradient(760px 560px at 4% 92%, var(--blob-2), transparent 62%),
      var(--bg);
    background-attachment: fixed;
  }
  .app { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }
  .sidebar {
    background: var(--sidebar);
    backdrop-filter: blur(10px);
    border-right: 1px solid var(--border);
    padding: 22px 16px;
    display: flex; flex-direction: column; gap: 26px;
    position: sticky; top: 0; height: 100vh; overflow-y: auto;
  }
  .brand { display: flex; align-items: center; gap: 11px; padding: 0 6px; }
  .brand .mark {
    width: 38px; height: 38px; border-radius: 11px;
    background: linear-gradient(135deg, var(--accent), #7aa7ff);
    display: grid; place-items: center; color: #fff; flex: none;
  }
  .brand h1 { margin: 0; font-size: 19px; font-weight: 700; letter-spacing: -0.02em; }
  .brand h1 span { color: var(--accent); }
  .brand small { display: block; color: var(--muted); font-size: 11px; letter-spacing: .01em; white-space: nowrap; }
  nav a {
    display: flex; align-items: center; gap: 11px;
    padding: 10px 12px; border-radius: var(--radius-sm);
    color: var(--muted); text-decoration: none; font-size: 14px;
  }
  nav { display: flex; flex-direction: column; gap: 4px; }
  nav a[aria-current="page"] { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
  nav a:hover:not([aria-current="page"]) { background: var(--surface-2); color: var(--text); }
  nav a svg { flex: none; }
  main { display: flex; flex-direction: column; min-width: 0; }
  .topbar { display: flex; align-items: center; justify-content: flex-end; gap: 10px; padding: 18px 28px 0; }
  .topbar > .seg, .topbar > .icon-btn { flex: none; }
  .seg {
    display: inline-flex; background: var(--surface);
    border: 1px solid var(--border-strong); border-radius: var(--radius-sm); overflow: hidden;
  }
  .seg button {
    appearance: none; border: 0; background: transparent; color: var(--muted);
    font: inherit; font-size: 12.5px; font-weight: 500; padding: 7px 12px; cursor: pointer;
  }
  .seg button:hover { color: var(--text); background: var(--surface-2); }
  .seg button[aria-pressed="true"] { color: #fff; background: var(--accent); }
  .seg button:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
  .icon-btn {
    appearance: none; width: 34px; height: 34px;
    display: inline-grid; place-items: center;
    background: var(--surface); color: var(--muted);
    border: 1px solid var(--border-strong); border-radius: var(--radius-sm); cursor: pointer;
  }
  .icon-btn:hover { background: var(--surface-2); color: var(--text); }
  .icon-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  #themeBtn .ico-light { display: none; }
  #themeBtn.is-dark .ico-dark { display: none; }
  #themeBtn.is-dark .ico-light { display: block; }
  .content {
    width: min(100%, calc(50% + 540px));
    margin: 0 auto;
    padding: 20px 28px 40px;
    display: flex; flex-direction: column; gap: 18px;
  }
  .pair { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: stretch; }
  @media (max-width: 900px) { .pair { grid-template-columns: 1fr; } }
  /* Dar ekran: kenar çubuğu soldan açılan çekmece, topbar'da menü butonu (common.js). */
  .menu-btn, .nav-backdrop { display: none; }
  @media (max-width: 720px) {
    .app { grid-template-columns: 1fr; }
    .sidebar {
      position: fixed; inset: 0 auto 0 0; z-index: 40;
      width: min(280px, 86vw); height: 100dvh;
      background: var(--surface); box-shadow: var(--shadow);
      transform: translateX(-100%); visibility: hidden;
      transition: transform .22s ease, visibility 0s linear .22s;
    }
    .nav-open .sidebar { transform: none; visibility: visible; transition: transform .22s ease; }
    .nav-open { overflow: hidden; }
    .nav-backdrop { display: block; position: fixed; inset: 0; z-index: 30; background: rgba(8, 12, 20, .45); }
    .menu-btn { display: inline-grid; margin-right: auto; }
    .topbar { padding: 14px 16px 0; }
    .content { padding: 16px 16px 32px; }
  }
  @media (max-width: 720px) and (prefers-reduced-motion: reduce) {
    .sidebar, .nav-open .sidebar { transition: none; }
  }
  .panel {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow);
    display: flex; flex-direction: column;
  }
  .panel > h3 {
    margin: 0 0 12px; font-size: 13.5px; font-weight: 600;
    display: flex; align-items: center; justify-content: space-between; gap: 10px; min-height: 30px;
  }
  .panel .hint { font-weight: 400; font-size: 12px; color: var(--muted); }
  .panel .sub { margin: 10px 0 0; font-size: 12px; color: var(--muted); min-height: 17px; }
  #dropzone, .render {
    height: 220px;
    border-radius: var(--radius-sm);
    background: var(--surface-2);
    border: 1px solid var(--border);
  }
  #dropzone {
    border-style: dashed; border-color: var(--border-strong);
    display: grid; place-items: center; padding: 12px;
    text-align: center; color: var(--muted); font-size: 13px; cursor: pointer;
    transition: border-color .15s, color .15s;
  }
  #dropzone:hover, #dropzone.drag { border-color: var(--accent); color: var(--text); }
  #dropzone:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  #dropzone.has-image { border-style: solid; background: #fff; }
  #dropHint .glyph {
    width: 42px; height: 42px; border-radius: 12px; margin: 0 auto 10px;
    background: var(--accent); color: #fff; display: grid; place-items: center;
    box-shadow: 0 6px 16px rgba(37, 99, 235, .3);
  }
  #sourceImage { display: none; max-width: 100%; max-height: 196px; border-radius: 6px; }
  .has-image #dropHint { display: none; }
  .render { overflow: auto; padding: 14px; display: flex; }
  .render-inner { margin: auto; text-align: center; font-size: 20px; }
  .render-inner.is-empty { font-size: 13px; color: var(--muted); }
  .render-inner.is-error { font-size: 13px; color: var(--warning); text-align: left; line-height: 1.5; }
  .copy-row { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
  .copy-row button.copy { width: 200px; min-width: 0; }
  button.copy {
    appearance: none; display: inline-flex; align-items: center; gap: 8px;
    background: var(--accent); color: #fff;
    border: 1px solid var(--accent); border-radius: var(--radius-sm);
    padding: 11px 18px; font: inherit; font-size: 13px; cursor: pointer;
    font-weight: 600;
    min-width: 168px; justify-content: center; white-space: nowrap;
  }
  button.copy:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
  button.copy:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  button.copy:disabled { opacity: .45; cursor: default; }
  button.copy:disabled:hover { background: var(--accent); border-color: var(--accent); }
  button.copy.secondary {
    background: var(--surface); color: var(--text); font-weight: 400;
    border-color: var(--border-strong);
  }
  button.copy.secondary:hover { background: var(--surface-2); border-color: var(--border-strong); }
  #resetBtn { min-width: auto; padding: 6px 12px; }
  button.copy .ico-done { display: none; }
  button.copy.is-done .ico-main { display: none; }
  button.copy.is-done .ico-done { display: block; }
  .status { margin: 12px 0 0; font-size: 12.5px; color: var(--muted); min-height: 19px; text-align: center; }
  .status.is-error { color: var(--danger); }
  .status.is-busy::before {
    content: ""; display: inline-block; width: 7px; height: 7px;
    margin-right: 7px; border-radius: 50%;
    background: var(--accent); animation: pulse 1.1s ease-in-out infinite;
  }
  @keyframes pulse { 0%,100% { opacity: .25 } 50% { opacity: 1 } }
  .note { margin: 4px 0 0; font-size: 12px; color: var(--muted); text-align: center; }
  .sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
  }
  .content.is-wide { width: 100%; }
  .content.is-roomy { width: min(100%, calc(50% + 720px)); }
  .ed-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
  .ed-title { margin: 0; font-size: 22px; font-weight: 700; letter-spacing: -0.02em; }
  .ed-sub { margin: 2px 0 0; color: var(--muted); font-size: 13.5px; }
  /* Misafirde açıklama yerine kayıt çağrısı; soluk değil, düz beyaz. */
  .ed-sub.is-cta { color: var(--text); }
  .ed-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 12px; border-radius: 999px; font-size: 12.5px; font-weight: 600;
    border: 1px solid var(--border-strong); background: var(--surface); color: var(--muted);
  }
  .ed-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
  .ed-badge.is-ok { color: var(--success); border-color: color-mix(in srgb, var(--success) 35%, transparent); background: color-mix(in srgb, var(--success) 10%, var(--surface)); }
  .ed-badge.is-error { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 35%, transparent); background: color-mix(in srgb, var(--danger) 10%, var(--surface)); }
  .ed-shell {
    display: flex; flex-direction: column; overflow: hidden;
    height: calc(100vh - 200px); min-height: 460px;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); box-shadow: var(--shadow);
  }
  .ed-bar {
    display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap;
    padding: 8px 10px; background: var(--surface-2); border-bottom: 1px solid var(--border);
  }
  .ed-tab {
    display: inline-block; padding: 5px 12px; font-size: 12.5px; font-weight: 600;
    background: var(--surface); border: 1px solid var(--border); border-radius: 7px;
  }
  .ed-actions, .ed-zoom { display: flex; align-items: center; gap: 6px; }
  .ed-btn {
    appearance: none; display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 5px 11px; border-radius: 7px; cursor: pointer;
    font: inherit; font-size: 12.5px; font-weight: 500;
    background: var(--surface); color: var(--text); border: 1px solid var(--border-strong);
  }
  a.ed-btn { text-decoration: none; }
  .ed-btn:hover { background: var(--surface-2); }
  .ed-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  .ed-btn:disabled { opacity: .45; cursor: default; background: var(--surface); }
  .ed-btn.is-primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
  .ed-btn.is-primary:hover:not(:disabled) { background: var(--accent-hover); border-color: var(--accent-hover); }
  .ed-btn.is-primary:disabled { background: var(--accent); }
  .ed-btn.is-icon { width: 28px; padding: 5px 0; font-size: 15px; line-height: 1; }
  .ed-btn .ico-done, .ed-btn.is-done .ico-main { display: none; }
  .ed-btn.is-done .ico-done { display: block; }
  .ed-panes { flex: 1; min-height: 0; display: grid; grid-template-columns: 1fr 1fr; }
  .ed-pane { min-width: 0; min-height: 0; display: flex; }
  .ed-code { border-right: 1px solid var(--border); }
  .ed-code:focus-within { box-shadow: inset 0 0 0 2px var(--accent-soft); }
  .ed-gutter, #source { font: 13px/21px ui-monospace, "Cascadia Code", Consolas, monospace; padding-top: 14px; padding-bottom: 14px; }
  .ed-gutter {
    flex: none; width: 48px; overflow: hidden; user-select: none; text-align: right;
    color: var(--muted); background: var(--surface-2); border-right: 1px solid var(--border);
  }
  .ed-gutter span { display: block; padding-right: 10px; }
  .ed-gutter span.is-error { color: var(--danger); font-weight: 700; background: color-mix(in srgb, var(--danger) 14%, transparent); }
  #source {
    flex: 1; min-width: 0; resize: none; border: 0; outline: none;
    padding-left: 14px; padding-right: 14px;
    background: transparent; color: var(--text);
    white-space: pre; overflow: auto; tab-size: 2;
  }
  #source::placeholder { color: var(--muted); }
  .ed-preview { flex-direction: column; }
  .ed-pane-head {
    display: flex; align-items: center; justify-content: space-between;
    padding: 7px 12px 7px 14px; border-bottom: 1px solid var(--border);
    font-size: 11.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--muted);
  }
  #zoomLabel { min-width: 42px; text-align: center; font-size: 12px; letter-spacing: 0; text-transform: none; }
  .ed-canvas {
    flex: 1; min-height: 0; overflow: auto; display: flex; padding: 24px;
    background-image: radial-gradient(var(--border) 1px, transparent 1px);
    background-size: 16px 16px;
  }
  .ed-render { margin: auto; color: var(--text); transition: opacity .15s; }
  .ed-render.is-empty { font-size: 13px !important; color: var(--muted); }
  .ed-render.is-stale { opacity: .35; }
  .ed-console {
    display: flex; align-items: center; gap: 14px; min-height: 36px;
    padding: 6px 12px; border-top: 1px solid var(--border); background: var(--surface-2);
    font-size: 12px; color: var(--muted);
  }
  .ed-error {
    appearance: none; border: 0; background: none; padding: 0; cursor: pointer;
    display: flex; gap: 10px; flex: 1; min-width: 0; text-align: left;
    font: 12px ui-monospace, "Cascadia Code", Consolas, monospace; color: var(--danger);
  }
  .ed-error:hover .ed-error-msg { text-decoration: underline; }
  .ed-error:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  .ed-error-pos { font-weight: 700; white-space: nowrap; }
  .ed-error-msg { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .ed-note { flex: 1; }
  .ed-cursor { margin-left: auto; white-space: nowrap; font-family: ui-monospace, "Cascadia Code", Consolas, monospace; }
  .ed-badge.is-warning { color: var(--warning); border-color: color-mix(in srgb, var(--warning) 35%, transparent); background: color-mix(in srgb, var(--warning) 10%, var(--surface)); }
  .ed-error.is-warning { color: var(--warning); }
  .ed-error-more { margin-left: auto; padding-left: 8px; white-space: nowrap; opacity: .75; }
  .ed-hint { font-weight: 400; letter-spacing: 0; text-transform: none; }
  .ed-canvas.is-page { display: block; padding: 20px; }
  .hd-page {
    max-width: 780px; min-height: 100%; margin: 0 auto;
    background: #fff; color: #1f2328; border-radius: 10px;
    border: 1px solid var(--border); box-shadow: var(--shadow);
    padding: 0 28px 28px; position: relative;
  }
  .hd-chrome { display: flex; gap: 6px; padding: 12px 0 18px; }
  .hd-chrome i { width: 9px; height: 9px; border-radius: 50%; background: #d8dee4; }
  .hd-empty { margin: 40px 0; text-align: center; color: #6e7781; font-size: 13px; }
  @media (max-width: 900px) {
    .ed-shell { height: auto; }
    .ed-panes { grid-template-columns: 1fr; }
    .ed-pane { height: 300px; }
    .ed-code { border-right: 0; border-bottom: 1px solid var(--border); }
  }
  .home-hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: 36px; align-items: center; padding: 18px 0 8px; }
  .home-eyebrow {
    display: inline-block; padding: 5px 11px; border-radius: 999px;
    background: var(--accent-soft); color: var(--accent); font-size: 12px; font-weight: 600; letter-spacing: .02em;
  }
  .home-title { margin: 14px 0 12px; font-size: 40px; line-height: 1.1; letter-spacing: -0.035em; }
  .home-title strong { color: var(--accent); }
  .home-lead { margin: 0; color: var(--muted); font-size: 16px; line-height: 1.65; max-width: 52ch; }
  .home-cta { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 24px; }
  .cta {
    display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px;
    border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; text-decoration: none;
    color: var(--text); background: var(--surface); border: 1px solid var(--border-strong);
  }
  .cta:hover { background: var(--surface-2); }
  .cta:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  .cta.is-primary { color: #fff; background: var(--accent); border-color: var(--accent); }
  .cta.is-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
  .home-demo {
    display: grid; gap: 12px; padding: 18px;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
  }
  .demo-step { display: grid; gap: 7px; }
  .demo-step + .demo-step { padding-top: 12px; border-top: 1px dashed var(--border-strong); }
  .demo-label { display: flex; align-items: center; gap: 8px; font-size: 11.5px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
  .demo-label b { display: grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-size: 10.5px; }
  .demo-shot {
    padding: 6px 12px; border-radius: 8px; overflow: hidden;
    background: #fff; color: #333; border: 1px solid #e3e3e3;
    font-size: 15px; filter: blur(.35px) contrast(.9);
  }
  .demo-shot .katex-display { margin: .4em 0; }
  .demo-code {
    display: block; padding: 9px 12px; border-radius: 8px; overflow-x: auto; white-space: nowrap;
    background: var(--surface-2); border: 1px solid var(--border);
    font: 12.5px/1.5 ui-monospace, "Cascadia Code", Consolas, monospace; color: var(--text);
  }
  .demo-result { font-size: 19px; color: var(--text); }
  .demo-result .katex-display { margin: .3em 0; }
  .demo-chips { display: flex; gap: 6px; }
  .demo-chips span { padding: 3px 9px; border-radius: 999px; font-size: 11.5px; font-weight: 600; background: var(--accent); color: #fff; }
  .home-section { margin-top: 18px; }
  .home-h3 { margin: 0 0 12px; font-size: 13px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .07em; }
  .home-tools { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .tool {
    display: flex; flex-direction: column; gap: 6px; padding: 18px;
    color: var(--text); text-decoration: none;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
    transition: transform .15s, border-color .15s;
  }
  .tool:hover { transform: translateY(-2px); border-color: var(--accent); }
  .tool:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  .tool-icon { display: grid; place-items: center; width: 40px; height: 40px; margin-bottom: 6px; border-radius: 11px; background: var(--accent-soft); color: var(--accent); }
  .tool b { font-size: 15px; }
  .tool-desc { color: var(--muted); font-size: 13px; line-height: 1.55; flex: 1; }
  .tool-go { margin-top: 6px; color: var(--accent); font-size: 13px; font-weight: 600; }
  .home-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: step; }
  .home-steps li { counter-increment: step; display: grid; grid-template-columns: auto 1fr; column-gap: 12px; row-gap: 2px; align-items: start; }
  .home-steps li::before {
    content: counter(step); grid-row: span 2;
    display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%;
    border: 1.5px solid var(--accent); color: var(--accent); font-weight: 700; font-size: 14px;
  }
  .home-steps b { font-size: 14.5px; }
  .home-steps span { color: var(--muted); font-size: 13px; line-height: 1.55; }
  .home-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 8px; }
  .home-facts div { display: grid; gap: 4px; padding: 4px 0 4px 14px; border-left: 3px solid var(--accent); }
  .home-facts b { font-size: 14px; }
  .home-facts span { color: var(--muted); font-size: 13px; line-height: 1.55; }
  @media (max-width: 900px) {
    .home-hero { grid-template-columns: 1fr; gap: 24px; }
    .home-title { font-size: 32px; }
    .home-tools, .home-steps, .home-facts { grid-template-columns: 1fr; }
  }
  /* Kenar çubuğunun en altı: margin-top:auto kalan boşluğu üstte bırakır. */
  .account {
    margin-top: auto; padding-top: 16px; border-top: 1px solid var(--border);
    display: flex; align-items: center; gap: 10px; min-width: 0;
  }
  .account.is-guest { flex-direction: column; align-items: stretch; gap: 8px; }
  .account form { margin: 0; }
  .account-avatar {
    width: 32px; height: 32px; border-radius: 50%; flex: none;
    display: grid; place-items: center; font-size: 13px; font-weight: 700; color: #fff;
    background: linear-gradient(135deg, var(--accent), #7aa7ff);
  }
  .account-email { flex: 1; min-width: 0; font-size: 13px; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .account-out {
    appearance: none; width: 32px; height: 32px; display: grid; place-items: center; cursor: pointer;
    background: none; color: var(--muted); border: 1px solid transparent; border-radius: var(--radius-sm);
  }
  .account-out:hover { color: var(--danger); background: var(--surface-2); border-color: var(--border); }
  .account-join, .account-link {
    display: block; text-align: center; padding: 9px 12px; border-radius: var(--radius-sm);
    font-size: 13.5px; font-weight: 600; text-decoration: none;
  }
  .account-join { color: #fff; background: var(--accent); border: 1px solid var(--accent); }
  .account-join:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
  .account-link { color: var(--text); background: var(--surface); border: 1px solid var(--border-strong); }
  .account-link:hover { background: var(--surface-2); }
  .account a:focus-visible, .account-out:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  /* Avatar + e-posta hesap sayfasına götürür; çıkış düğmesi yanında ayrı. */
  .account-me {
    flex: 1; min-width: 0; display: flex; align-items: center; gap: 10px;
    margin: -5px; padding: 5px; border-radius: var(--radius-sm); color: inherit; text-decoration: none;
  }
  .account-me:hover, .account-me[aria-current="page"] { background: var(--surface-2); }
  .content.is-auth { min-height: calc(100vh - 60px); justify-content: center; align-items: center; }
  .auth-card {
    width: min(100%, 900px); display: grid; grid-template-columns: 1.1fr 1fr; overflow: hidden;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
  }
  .auth-card.is-narrow { width: min(100%, 440px); grid-template-columns: 1fr; }
  .auth-form { padding: 36px 40px; display: flex; flex-direction: column; gap: 16px; }
  .auth-form header { display: grid; gap: 4px; margin-bottom: 4px; }
  .auth-title { margin: 0; font-size: 24px; font-weight: 700; letter-spacing: -0.02em; }
  .auth-sub { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.55; }
  .auth-glyph {
    width: 42px; height: 42px; border-radius: 12px; margin-bottom: 8px;
    display: grid; place-items: center; background: var(--accent-soft); color: var(--accent);
  }
  .auth-glyph.is-success { background: color-mix(in srgb, var(--success) 14%, var(--surface)); color: var(--success); }
  .auth-glyph.is-warning { background: color-mix(in srgb, var(--warning) 14%, var(--surface)); color: var(--warning); }
  .auth-message { align-items: flex-start; }
  .field { display: grid; gap: 6px; }
  .field label { font-size: 13px; font-weight: 600; }
  .field input {
    width: 100%; padding: 10px 12px; font: inherit; font-size: 14.5px; color: var(--text);
    background: var(--surface-2); border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
    transition: border-color .15s, box-shadow .15s;
  }
  .field input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); background: var(--surface); }
  .field.has-error input { border-color: var(--danger); }
  .field-hint { color: var(--muted); font-size: 12px; }
  .field-errors, .form-errors { list-style: none; margin: 0; padding: 0; color: var(--danger); font-size: 12.5px; }
  .form-errors {
    padding: 10px 12px; border-radius: var(--radius-sm);
    background: color-mix(in srgb, var(--danger) 9%, var(--surface));
    border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent);
  }
  .auth-forgot { align-self: flex-end; margin-top: -8px; font-size: 12.5px; color: var(--accent); text-decoration: none; }
  .auth-forgot:hover { text-decoration: underline; }
  .auth-submit {
    appearance: none; display: flex; justify-content: center; align-items: center; margin-top: 4px;
    padding: 12px 18px; border: 0; border-radius: var(--radius-sm); cursor: pointer;
    font: inherit; font-size: 14.5px; font-weight: 600; color: #fff; background: var(--accent); text-decoration: none;
  }
  .auth-message .auth-submit, .auth-message .auth-alt { align-self: stretch; }
  .auth-submit:hover { background: var(--accent-hover); }
  .auth-submit:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  .auth-alt { margin: 0; text-align: center; font-size: 13.5px; color: var(--muted); }
  .auth-alt a { color: var(--accent); font-weight: 600; text-decoration: none; }
  .auth-alt a:hover { text-decoration: underline; }
  .auth-side {
    padding: 36px 34px; display: flex; flex-direction: column; gap: 14px; color: #fff;
    background:
      radial-gradient(320px 240px at 90% 0%, rgba(255, 255, 255, .22), transparent 70%),
      linear-gradient(155deg, var(--accent), #7aa7ff);
  }
  .auth-side-tag {
    align-self: flex-start; padding: 4px 10px; border-radius: 999px; font-size: 11.5px; font-weight: 600;
    letter-spacing: .04em; text-transform: uppercase; background: rgba(255, 255, 255, .18);
  }
  .auth-side-title { margin: 0; font-size: 21px; font-weight: 700; line-height: 1.25; letter-spacing: -0.02em; }
  .auth-peek { list-style: none; margin: 6px 0; padding: 0; display: grid; gap: 8px; }
  .auth-peek li {
    display: flex; align-items: center; justify-content: space-between; gap: 10px;
    padding: 10px 12px; border-radius: 10px;
    background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .22);
  }
  .auth-peek li:nth-child(2) { opacity: .8; }
  .auth-peek li:nth-child(3) { opacity: .6; }
  .auth-peek code { font: 12.5px ui-monospace, "Cascadia Code", Consolas, monospace; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .auth-peek span { font-size: 11.5px; opacity: .85; white-space: nowrap; }
  .auth-side-note { margin: auto 0 0; font-size: 13px; line-height: 1.55; opacity: .9; }
  @media (max-width: 820px) {
    .auth-card { grid-template-columns: 1fr; }
    .auth-side { display: none; }
    .auth-form { padding: 28px 22px; }
  }
  .note.is-saved { color: var(--success); }
  .note a { color: var(--accent); font-weight: 600; }
  /* Kota: başlıkta kalan hak; bitince yükleme alanı kilitlenir. */
  .quota-pill {
    display: inline-flex; align-items: baseline; gap: 3px; padding: 5px 11px; border-radius: 999px;
    font-size: 12.5px; color: var(--muted); background: var(--surface); border: 1px solid var(--border-strong);
  }
  .quota-pill strong { font-size: 13.5px; color: var(--accent); }
  .quota-pill.is-empty { border-color: color-mix(in srgb, var(--warning) 45%, transparent); }
  .quota-pill.is-empty strong { color: var(--warning); }
  .locked-hint { display: none; max-width: 300px; line-height: 1.55; }
  #dropzone.is-locked { cursor: not-allowed; border-style: solid; }
  #dropzone.is-locked:hover { border-color: var(--border-strong); color: var(--muted); }
  #dropzone.is-locked #dropHint { display: none; }
  #dropzone.is-locked:not(.has-image) .locked-hint { display: block; }
  /* Misafir: yükleme alanı yerine hazır örnek ve tek döngü butonu. */
  .sample-frame {
    height: 220px; display: grid; place-items: center; padding: 12px;
    border-radius: var(--radius-sm); background: #fff; border: 1px solid var(--border);
  }
  .sample-frame img { max-width: 100%; max-height: 196px; }
  .cycle-btn {
    appearance: none; width: 34px; height: 34px; flex: none; display: grid; place-items: center;
    border-radius: 50%; cursor: pointer; color: #fff; border: 0;
    background: linear-gradient(135deg, var(--accent), #7aa7ff);
    box-shadow: 0 6px 16px color-mix(in srgb, var(--accent) 32%, transparent);
    transition: transform .15s, box-shadow .15s;
  }
  .cycle-btn svg { transform: rotate(var(--turn, 0turn)); transition: transform .45s cubic-bezier(.3, .7, .3, 1); }
  .cycle-btn:hover { transform: scale(1.07); box-shadow: 0 8px 20px color-mix(in srgb, var(--accent) 40%, transparent); }
  .cycle-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
  @media (prefers-reduced-motion: reduce) { .cycle-btn svg { transition: none; } }
  .hist { display: flex; flex-direction: column; gap: 10px; }
  .hist-day { margin: 14px 0 2px; font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .07em; }
  .hist-day:first-child { margin-top: 0; }
  .hist-item {
    display: grid; grid-template-columns: 54px minmax(0, 1fr) auto;
    column-gap: 16px; align-items: center; padding: 12px 14px 12px 16px;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
  }
  .hist-item:hover { border-color: var(--border-strong); }
  .hist-time { font-size: 12.5px; font-weight: 600; color: var(--muted); font-variant-numeric: tabular-nums; }
  .hist-eq { grid-column: 2; grid-row: 1; min-width: 0; overflow-x: auto; overflow-y: hidden; padding: 2px 0; font-size: 20px; }
  .hist-eq .katex-display { margin: .3em 0; text-align: left; }
  .hist-eq .katex-display > .katex { text-align: left; }
  /* Kod yalnızca denklem çizilemediğinde, denklemin yerinde görünür. */
  .hist-code { display: none; }
  .hist-item.is-error .hist-code {
    display: block; grid-column: 2; grid-row: 1; min-width: 0; word-break: break-all;
    font: 13px ui-monospace, "Cascadia Code", Consolas, monospace; color: var(--warning);
  }
  .hist-actions { grid-column: 3; grid-row: 1; display: flex; gap: 6px; align-items: center; }
  .hist-delete { margin: 0; }
  .hist-delete .ed-btn:hover { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, transparent); }
  .hist-pager { display: flex; align-items: center; justify-content: center; gap: 12px; font-size: 13px; color: var(--muted); }
  .hist-empty {
    display: flex; flex-direction: column; align-items: center; text-align: center; gap: 6px;
    padding: 56px 24px; border: 1px dashed var(--border-strong); border-radius: var(--radius); background: var(--surface);
  }
  .hist-empty h3 { margin: 4px 0 0; font-size: 17px; }
  .hist-empty p { margin: 0 0 12px; color: var(--muted); font-size: 14px; }
  @media (max-width: 720px) {
    .hist-item { grid-template-columns: minmax(0, 1fr); row-gap: 6px; }
    .hist-time, .hist-eq, .hist-item.is-error .hist-code, .hist-actions { grid-column: 1; grid-row: auto; }
  }

  /* Hesap ayarları: dar tek sütun. Üstte kimlik şeridi, altında ayar
     satırları (solda ne işe yaradığı, sağda kontrolü), en altta ayrı
     çerçeveli tehlikeli bölge. */
  .content.is-narrow-page { width: min(100%, 880px); }
  .acct-id {
    display: flex; align-items: center; gap: 16px; padding: 18px 20px;
    background:
      radial-gradient(420px 160px at 100% 0%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%),
      var(--surface);
    border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
  }
  .acct-avatar {
    width: 52px; height: 52px; border-radius: 50%; flex: none;
    display: grid; place-items: center; font-size: 21px; font-weight: 700; color: #fff;
    background: linear-gradient(135deg, var(--accent), #7aa7ff);
    box-shadow: 0 6px 16px color-mix(in srgb, var(--accent) 30%, transparent);
  }
  .acct-who { flex: 1; min-width: 0; display: grid; gap: 2px; }
  .acct-email { font-size: 16.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .acct-since { font-size: 13px; color: var(--muted); }
  .acct-stat {
    flex: none; display: grid; justify-items: center; padding: 8px 16px; border-radius: var(--radius-sm);
    color: var(--muted); font-size: 12px; text-decoration: none;
    background: var(--surface-2); border: 1px solid var(--border);
  }
  .acct-stat strong { font-size: 20px; line-height: 1.2; color: var(--accent); }
  .acct-stat:hover { border-color: var(--border-strong); }
  .acct-stat:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  .acct-list {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
  }
  .acct-row { display: grid; grid-template-columns: 1fr 1.25fr; gap: 32px; padding: 22px 24px; margin: 0; }
  .acct-row + .acct-row { border-top: 1px solid var(--border); }
  .acct-info h3 { margin: 0 0 4px; font-size: 15px; }
  .acct-info p { margin: 0; font-size: 13.5px; line-height: 1.55; color: var(--muted); }
  .acct-info .acct-done {
    display: inline-flex; align-items: center; gap: 6px; margin-top: 12px; padding: 5px 10px;
    border-radius: 999px; font-size: 12.5px; font-weight: 600; color: var(--success);
    background: color-mix(in srgb, var(--success) 12%, var(--surface));
  }
  .acct-body { display: grid; gap: 14px; align-content: start; }
  .plan-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
  .plan-badge {
    padding: 4px 11px; border-radius: 999px; font-size: 12.5px; font-weight: 700;
    color: var(--text); background: var(--surface-2); border: 1px solid var(--border-strong);
  }
  .plan-badge.is-premium { color: #fff; border-color: transparent; background: linear-gradient(135deg, var(--accent), #8b6cff); }
  .plan-until { font-size: 12.5px; color: var(--muted); }
  .plan-usage { display: grid; gap: 8px; }
  .plan-numbers { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; font-size: 13.5px; }
  .plan-numbers strong { font-size: 15px; }
  .plan-bar { appearance: none; width: 100%; height: 8px; border: 0; border-radius: 999px; overflow: hidden; background: var(--surface-2); }
  .plan-bar::-webkit-progress-bar { background: var(--surface-2); border-radius: 999px; }
  .plan-bar::-webkit-progress-value { background: linear-gradient(90deg, var(--accent), #7aa7ff); border-radius: 999px; }
  .plan-bar::-moz-progress-bar { background: linear-gradient(90deg, var(--accent), #7aa7ff); border-radius: 999px; }
  .acct-submit { justify-self: start; padding: 8px 16px; font-size: 13.5px; }
  .acct-list.is-danger { border-color: color-mix(in srgb, var(--danger) 35%, var(--border)); }
  .acct-list.is-danger h3 { color: var(--danger); }
  /* Dolgu değil çerçeve: koyu temadaki açık kırmızı üzerinde beyaz yazı
     okunmuyordu. Üzerine gelince dolar. */
  .ed-btn.is-danger {
    color: var(--danger); font-weight: 600;
    background: color-mix(in srgb, var(--danger) 10%, var(--surface));
    border-color: color-mix(in srgb, var(--danger) 55%, transparent);
  }
  .ed-btn.is-danger:hover { background: var(--danger); border-color: var(--danger); color: var(--surface); }
  @media (max-width: 720px) {
    .acct-row { grid-template-columns: 1fr; gap: 16px; padding: 18px; }
    .acct-id { flex-wrap: wrap; }
  }

  /* Üyelikler: üç paket yan yana, Premium öne çıkan; altta sık sorulanlar. */
  .plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: stretch; }
  .plan-card {
    position: relative; display: flex; flex-direction: column; gap: 18px; padding: 24px 22px;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
  }
  .plan-card header h3 { margin: 0; font-size: 17px; letter-spacing: -0.01em; }
  /* İki satırlık yer: açıklaması kısa kartta da hak sayıları aynı hizada kalsın. */
  .plan-card header p { margin: 4px 0 0; min-height: 3em; font-size: 13px; line-height: 1.5; color: var(--muted); }
  .plan-card.is-featured {
    border: 1.5px solid transparent;
    background:
      linear-gradient(var(--surface), var(--surface)) padding-box,
      linear-gradient(135deg, var(--accent), #8b6cff) border-box;
  }
  .plan-card.is-featured .plan-amount strong {
    background: linear-gradient(135deg, var(--accent), #8b6cff);
    -webkit-background-clip: text; background-clip: text; color: transparent;
  }
  .plan-amount { display: flex; align-items: baseline; gap: 8px; }
  .plan-amount strong { font-size: 40px; line-height: 1; letter-spacing: -0.03em; color: var(--text); }
  .plan-amount span { font-size: 13.5px; color: var(--muted); }
  .plan-feats { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; font-size: 13.5px; }
  .plan-feats li { display: flex; gap: 9px; align-items: flex-start; line-height: 1.45; }
  .plan-feats li::before {
    content: ""; flex: none; width: 18px; height: 18px; margin-top: 1px; border-radius: 50%;
    background-position: center; background-repeat: no-repeat; background-size: 12px;
  }
  .plan-feats li.is-yes::before {
    background-color: color-mix(in srgb, var(--success) 16%, var(--surface));
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%233fb950' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 12.5l5 5L20 6.5'/%3E%3C/svg%3E");
  }
  .plan-feats li.is-no { color: var(--muted); }
  .plan-feats li.is-no::before {
    background-color: var(--surface-2);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238894a8' stroke-width='3' stroke-linecap='round'%3E%3Cpath d='M6 12h12'/%3E%3C/svg%3E");
  }
  .plan-card footer { margin-top: auto; display: grid; gap: 8px; }
  .plan-cta {
    appearance: none; display: flex; justify-content: center; padding: 11px 16px; border-radius: var(--radius-sm);
    font: inherit; font-size: 14px; font-weight: 600; text-decoration: none; cursor: pointer;
    color: var(--text); background: var(--surface); border: 1px solid var(--border-strong);
  }
  .plan-cta:hover { background: var(--surface-2); }
  .plan-cta.is-primary { color: #fff; background: var(--accent); border-color: var(--accent); }
  .plan-cta.is-primary:hover { background: var(--accent-hover); }
  .plan-cta:disabled { cursor: default; opacity: .55; }
  .plan-cta:disabled:hover { background: var(--accent); }
  .plan-cta:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  .plan-current {
    justify-self: start; padding: 4px 11px; border-radius: 999px; font-size: 12.5px; font-weight: 700;
    color: var(--accent); background: var(--accent-soft);
  }
  .plan-card.is-current { box-shadow: var(--shadow), 0 0 0 3px var(--accent-soft); }
  .plan-usage-link { font-size: 13px; color: var(--muted); text-decoration: none; }
  .plan-usage-link:hover { color: var(--accent); }
  .plan-faq {
    padding: 8px 22px; background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); box-shadow: var(--shadow);
  }
  .plan-faq h3 { margin: 14px 0 6px; font-size: 15px; }
  .plan-faq details { border-top: 1px solid var(--border); }
  .plan-faq h3 + details { border-top: 0; }
  .plan-faq summary { cursor: pointer; padding: 13px 0; font-size: 14px; font-weight: 600; }
  .plan-faq summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
  .plan-faq details p { margin: 0 0 14px; font-size: 13.5px; line-height: 1.6; color: var(--muted); }
  @media (max-width: 900px) { .plan-grid { grid-template-columns: 1fr; } }
  /* Kayıt formundaki şart onayı: kutu solda, bağlantılı metin sağda. */
  .consent { display: grid; grid-template-columns: auto 1fr; gap: 4px 10px; align-items: start; font-size: 13px; line-height: 1.5; color: var(--muted); }
  .consent input { width: 17px; height: 17px; margin: 1px 0 0; accent-color: var(--accent); cursor: pointer; }
  .consent label { cursor: pointer; }
  .consent a { color: var(--accent); font-weight: 600; text-decoration: none; }
  .consent a:hover { text-decoration: underline; }
  .consent .field-errors { grid-column: 2; }
  .consent.has-error input { outline: 2px solid var(--danger); outline-offset: 1px; }
  /* Kenar çubuğunun en altındaki yasal bağlantılar; nav a stilini ezer. */
  .sidebar .sidebar-legal { flex-direction: row; flex-wrap: nowrap; gap: 10px; margin-top: -14px; padding: 0 6px; }
  .sidebar .sidebar-legal a { padding: 0; font-size: 11.5px; white-space: nowrap; background: none; color: var(--muted); }
  .sidebar .sidebar-legal a:hover:not([aria-current="page"]) { background: none; color: var(--text); text-decoration: underline; }
  /* Etkin bağlantı kalın değil: kalınlık genişletip ikinci bağlantıyı alt satıra itiyordu. */
  .sidebar .sidebar-legal a[aria-current="page"] { background: none; color: var(--accent); font-weight: inherit; }
  /* Yasal metinler: iki dil ayrı blokta, <html lang>'a uymayan gizlenir. */
  html[lang="en"] .legal-doc[lang="tr"], html:not([lang="en"]) .legal-doc[lang="en"] { display: none; }
  .content.is-legal { width: min(100%, 1060px); }
  .legal-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
  .legal-switch {
    display: inline-flex; flex-direction: row; padding: 4px; gap: 4px; border-radius: 999px;
    background: var(--surface); border: 1px solid var(--border-strong);
  }
  .legal-switch a {
    padding: 7px 16px; border-radius: 999px; font-size: 13px; font-weight: 600;
    color: var(--muted); text-decoration: none;
  }
  .legal-switch a:hover:not([aria-current="page"]) { color: var(--text); background: var(--surface-2); }
  .legal-switch a[aria-current="page"] { color: #fff; background: var(--accent); }
  .legal-switch a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  .legal-updated { margin: 0; font-size: 12.5px; color: var(--muted); }
  .legal-updated time { font-variant-numeric: tabular-nums; color: var(--text); font-weight: 600; }
  .legal-doc { display: flex; flex-direction: column; gap: 22px; }
  .legal-intro {
    position: relative; overflow: hidden; padding: 30px 32px 28px;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
  }
  .legal-intro::before {
    content: ""; position: absolute; inset: 0 0 auto; height: 4px;
    background: linear-gradient(90deg, var(--accent), #7aa7ff);
  }
  .legal-eyebrow { margin: 0 0 8px; font-size: 11.5px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); }
  .legal-title { margin: 0; font-size: 28px; line-height: 1.2; font-weight: 700; letter-spacing: -0.02em; }
  .legal-lead { margin: 10px 0 0; max-width: 72ch; color: var(--muted); font-size: 14.5px; line-height: 1.65; }
  .legal-glance { list-style: none; margin: 22px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .legal-glance li {
    position: relative; padding: 14px 14px 14px 44px; border-radius: var(--radius-sm);
    background: var(--surface-2); border: 1px solid var(--border); font-size: 13px; line-height: 1.55; color: var(--muted);
  }
  /* Onay işareti: daire ::before, tik ::after; renk temayla değişsin diye CSS. */
  .legal-glance li::before {
    content: ""; position: absolute; left: 14px; top: 15px; width: 18px; height: 18px; border-radius: 50%;
    background: var(--accent-soft);
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 30%, transparent);
  }
  .legal-glance li::after {
    content: ""; position: absolute; left: 20px; top: 19px; width: 5px; height: 8px;
    border: solid var(--accent); border-width: 0 2px 2px 0; transform: rotate(45deg);
  }
  .legal-glance strong { display: block; margin-bottom: 2px; color: var(--text); font-size: 13.5px; }
  .legal-text {
    counter-reset: sec; padding: 10px 34px; min-width: 0;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
  }
  .legal-text section {
    counter-increment: sec; scroll-margin-top: 20px;
    display: grid; grid-template-columns: 44px minmax(0, 1fr); column-gap: 6px; padding: 22px 0;
  }
  .legal-text section + section { border-top: 1px solid var(--border); }
  .legal-text section::before {
    content: counter(sec, decimal-leading-zero); grid-row: 1 / span 20;
    font-size: 13px; font-weight: 700; font-variant-numeric: tabular-nums; color: var(--accent); padding-top: 3px;
  }
  .legal-text section > * { grid-column: 2; }
  /* Sorumluluk reddi göze çarpsın. */
  .legal-text section.is-key {
    margin: 6px -18px; padding: 22px 18px; border: 1px solid color-mix(in srgb, var(--warning) 35%, var(--border));
    border-radius: var(--radius-sm); background: color-mix(in srgb, var(--warning) 7%, var(--surface));
  }
  .legal-text section.is-key + section { border-top: 0; }
  .legal-text section.is-key::before { color: var(--warning); }
  .legal-text h3 { margin: 0 0 8px; font-size: 16.5px; letter-spacing: -0.01em; }
  .legal-text p, .legal-text li { font-size: 14px; line-height: 1.7; }
  .legal-text p { margin: 0 0 10px; max-width: 72ch; }
  .legal-text p:last-child { margin-bottom: 0; }
  .legal-text ul { margin: 0 0 10px; padding-left: 18px; max-width: 72ch; }
  .legal-text li + li { margin-top: 6px; }
  .legal-text a { color: var(--accent); }
  .legal-text code { font: 12.5px ui-monospace, "Cascadia Code", Consolas, monospace; }
  .legal-table-wrap { overflow-x: auto; margin: 4px 0 12px; border: 1px solid var(--border); border-radius: var(--radius-sm); }
  .legal-table { width: 100%; border-collapse: collapse; font-size: 13px; line-height: 1.5; }
  .legal-table th { text-align: left; padding: 9px 12px; background: var(--surface-2); font-size: 12px; font-weight: 700; color: var(--muted); }
  .legal-table td { padding: 10px 12px; border-top: 1px solid var(--border); vertical-align: top; }
  .legal-missing { padding: 1px 5px; border-radius: 4px; background: color-mix(in srgb, var(--danger) 15%, transparent); color: var(--danger); font: 12px ui-monospace, Consolas, monospace; }
  @media (max-width: 900px) {
    .legal-glance { grid-template-columns: 1fr; }
  }
  @media (max-width: 560px) {
    .content.is-legal { padding-left: 16px; padding-right: 16px; }
    .legal-intro { padding: 24px 18px 20px; }
    .legal-title { font-size: 23px; }
    .legal-text { padding: 4px 18px; }
    .legal-text section { grid-template-columns: minmax(0, 1fr); }
    .legal-text section::before { grid-row: auto; padding: 0 0 4px; }
    .legal-text section > * { grid-column: 1; }
    .legal-text section.is-key { margin: 6px -8px; padding: 18px 8px; }
  }
  /* 500.html: kenar çubuğusuz, ortalanmış tek kart. */
  .error-page { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; }