/* SimTMS web sitesi — ortak stil.
   Layout: üstte yapışkan marka şeridi; tanıtım sayfası tek sütun bölümler, kılavuz solda içindekiler + sağda okuma sütunu.
   Renk ve yazı sistemi simülatörle aynıdır (deniz yeşili vurgu, Archivo + IBM Plex). */
:root {
  --bg: #edf0f5; --panel: #ffffff; --panel-2: #f5f7fb;
  --ink: #151b2c; --ink-soft: #5a6479; --line: #d6dce8;
  --accent: #0e7c86; --accent-soft: rgba(14,124,134,.09); --accent-ink: #ffffff;
  --warn: #9a6416; --warn-soft: rgba(183,121,31,.10); --hot: #d4472f;
  --skin: #f3e9e1; --skin-line: #c9b8aa; --coil: #0e7c86; --holder: #6b7488; --grid: rgba(90,100,121,.16);
  --font-d: "Archivo", system-ui, sans-serif;
  --font-b: "IBM Plex Sans", system-ui, sans-serif;
  --font-m: "IBM Plex Mono", ui-monospace, monospace;
  --shadow: 0 1px 2px rgba(20,26,43,.06), 0 8px 24px rgba(20,26,43,.07);
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --bg: #0c1018; --panel: #141b27; --panel-2: #0f1620;
  --ink: #e8edf6; --ink-soft: #97a3b9; --line: #283240;
  --accent: #3fd0d8; --accent-soft: rgba(63,208,216,.10); --accent-ink: #062a2d;
  --warn: #e0a84a; --warn-soft: rgba(224,168,74,.10); --hot: #ff7a63;
  --skin: #2a2420; --skin-line: #5c4d42; --coil: #3fd0d8; --holder: #8a94a8; --grid: rgba(151,163,185,.14);
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 10px 30px rgba(0,0,0,.45); color-scheme: dark;
}}
:root[data-theme="dark"] {
  --bg: #0c1018; --panel: #141b27; --panel-2: #0f1620;
  --ink: #e8edf6; --ink-soft: #97a3b9; --line: #283240;
  --accent: #3fd0d8; --accent-soft: rgba(63,208,216,.10); --accent-ink: #062a2d;
  --warn: #e0a84a; --warn-soft: rgba(224,168,74,.10); --hot: #ff7a63;
  --skin: #2a2420; --skin-line: #5c4d42; --coil: #3fd0d8; --holder: #8a94a8; --grid: rgba(151,163,185,.14);
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 10px 30px rgba(0,0,0,.45); color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font-b); font-size: 16px; line-height: 1.62; }
a { color: var(--accent); }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.in { max-width: 1160px; margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }

/* üst şerit */
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 21; background: var(--bg); }
.top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: var(--bg); border-bottom: 1px solid var(--line); }
.top .in { display: flex; align-items: center; gap: 8px 20px; flex-wrap: wrap; padding-block: 10px; }
.brand { font-family: var(--font-d); font-weight: 800; font-size: 19px; letter-spacing: -.01em; color: var(--ink); text-decoration: none; display: inline-flex; align-items: center; gap: 8px; }
.brand img { width: 26px; height: 26px; }
.brand b { color: var(--accent); font-weight: 800; }
.top nav { display: flex; gap: 4px 16px; flex-wrap: wrap; flex: 1; min-width: 0; font-size: 14px; }
.top nav a { color: var(--ink-soft); text-decoration: none; padding: 4px 0; }
.top nav a:hover, .top nav a[aria-current="page"] { color: var(--ink); }
.top nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--accent); }
@media (max-width: 640px) {
  .top nav { order: 3; flex: 1 1 100%; gap: 4px 18px; }
  .top .lang { margin-left: auto; }
  .lead { font-size: 17px; }
}
/* henüz yalnız diğer dilde olan sayfanın menü etiketi */
.top nav .ol { font: 600 10px var(--font-m); color: var(--ink-soft); border: 1px solid var(--line); border-radius: 4px; padding: 0 4px; margin-left: 5px; vertical-align: 1px; }
.lang { display: inline-flex; border: 1px solid var(--line); border-radius: 9px; overflow: hidden; background: var(--panel); }
.lang a, .lang span { font: 600 13px var(--font-m); color: var(--ink-soft); padding: 5px 11px; text-decoration: none; }
.lang span { background: var(--accent); color: var(--accent-ink); }

/* düğmeler */
.btn { display: inline-flex; align-items: center; gap: 8px; font: 600 15px var(--font-b); text-decoration: none; border-radius: 11px; padding: 11px 18px; border: 1px solid var(--line); color: var(--ink); background: var(--panel); }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }

/* ortak tipografi */
.eyebrow { font: 500 12px var(--font-m); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin: 0 0 8px; }
h1, h2, h3, h4 { text-wrap: balance; }
h1 { font-family: var(--font-d); font-weight: 800; font-size: clamp(32px, 5.4vw, 52px); line-height: 1.03; letter-spacing: -.02em; margin: 0 0 14px; }
h2 { font-family: var(--font-d); font-weight: 700; font-size: clamp(23px, 3vw, 28px); line-height: 1.15; margin: 0 0 12px; }
h3 { font-family: var(--font-d); font-weight: 700; font-size: 18px; margin: 22px 0 6px; }
p { margin: 0 0 12px; }
ul, ol { margin: 0 0 12px; padding-left: 22px; }
li { margin-bottom: 5px; }
strong { font-weight: 600; }
.lead { font-size: 19px; color: var(--ink-soft); margin: 0 0 20px; max-width: 60ch; }

/* tanıtım sayfası */
.hero .in { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 36px; align-items: center; padding-block: 48px 40px; }
@media (max-width: 860px) { .hero .in { grid-template-columns: 1fr; padding-block: 30px 24px; } }
.hero .cta { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.hero .meta { font-size: 13px; color: var(--ink-soft); }
.hero figure { margin: 0; background: var(--panel); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); padding: 14px; }
.hero figure svg { display: block; width: 100%; height: auto; }
.hero figcaption { font-size: 12.5px; color: var(--ink-soft); margin-top: 8px; }
.band { padding-block: 40px; border-top: 1px solid var(--line); }
.band .head { max-width: 66ch; margin-bottom: 22px; }
.band .head p { color: var(--ink-soft); }
.flow { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; counter-reset: f; }
.flow li:last-child { grid-column: span 2; }   /* 7 adım: 4 + 3 satırı boşluksuz doldurur */
@media (max-width: 900px) { .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); } .flow li:last-child { grid-column: auto; } .flow li:first-child { grid-column: span 2; } }
@media (max-width: 520px) { .flow { grid-template-columns: 1fr; } .flow li:first-child { grid-column: auto; } }
.flow li { counter-increment: f; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; margin: 0; }
.flow li::before { content: counter(f); font: 700 13px var(--font-m); color: var(--accent); display: block; margin-bottom: 2px; }
.flow b { display: block; font-family: var(--font-d); font-size: 15.5px; margin-bottom: 3px; }
.flow span { font-size: 14px; color: var(--ink-soft); }
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 22px 32px; }
.cols > div { min-width: 0; }
.cols h3 { margin-top: 0; }
.cols p { color: var(--ink-soft); font-size: 15px; }
.who { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; }
.who li { margin: 0; background: var(--panel); border: 1px solid var(--line); border-radius: 999px; padding: 6px 13px; font-size: 14px; }
.cite { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; font-size: 14px; }
.cite code { font-family: var(--font-m); font-size: 13px; }

/* kılavuz */
.doc-head { padding-block: 34px 0; max-width: 72ch; margin-left: 290px; }
@media (max-width: 900px) { .doc-head { margin-left: 0; padding-top: 24px; } }
.doc { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 40px; padding-block: 8px 60px; }
@media (max-width: 900px) { .doc { grid-template-columns: 1fr; gap: 18px; } }
nav.toc { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 70px); align-self: start; font-size: 13.5px; }
nav.toc .lbl { font: 500 11px var(--font-m); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-soft); margin: 0 0 8px; }
nav.toc ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; counter-reset: t; }
nav.toc li { counter-increment: t; margin: 0; }
nav.toc a { display: grid; grid-template-columns: 26px 1fr; padding: 4px 8px; border-radius: 7px; color: var(--ink-soft); text-decoration: none; }
nav.toc a::before { content: counter(t, decimal-leading-zero); font: 500 11.5px var(--font-m); padding-top: 2px; }
nav.toc a:hover { background: var(--panel); color: var(--ink); }
nav.toc a.on { background: var(--accent-soft); color: var(--ink); }
nav.toc a.on::before { color: var(--accent); }
@media (max-width: 900px) {
  nav.toc { position: static; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 12px; }
  nav.toc ol { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) { nav.toc ol { grid-template-columns: 1fr; } }
article { min-width: 0; max-width: 72ch; }
article section { padding-top: 34px; scroll-margin-top: 70px; }
article h2 { display: flex; gap: 12px; align-items: baseline; }
article h2 .no { font: 500 13px var(--font-m); color: var(--accent); }
a.c { text-decoration: none; font-size: .92em; }
a.c:hover { text-decoration: underline; }
.def { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; margin: 0 0 14px; }
.def .k, .sim .k, .warnbox .k { font: 600 11.5px var(--font-m); letter-spacing: .1em; text-transform: uppercase; color: var(--accent); margin-bottom: 4px; }
.def p:last-child, .sim p:last-child, .warnbox p:last-child { margin-bottom: 0; }
.sim { border-left: 3px solid var(--accent); background: var(--accent-soft); padding: 10px 14px; border-radius: 0 10px 10px 0; margin: 0 0 14px; font-size: 14.5px; }
.warnbox { border-left: 3px solid var(--warn); background: var(--warn-soft); padding: 10px 14px; border-radius: 0 10px 10px 0; margin: 0 0 14px; font-size: 14.5px; }
.warnbox .k { color: var(--warn); }
.tbl { overflow-x: auto; margin: 0 0 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
table { border-collapse: collapse; width: 100%; font-size: 14px; min-width: 640px; }
th, td { text-align: left; vertical-align: top; padding: 9px 12px; border-bottom: 1px solid var(--line); }
th { font: 600 12px var(--font-m); letter-spacing: .04em; color: var(--ink-soft); background: var(--panel-2); }
tr:last-child td { border-bottom: 0; }
.num { font-family: var(--font-m); font-variant-numeric: tabular-nums; }
.steps { list-style: none; padding: 0; counter-reset: s; display: grid; gap: 10px; }
.steps > li { counter-increment: s; display: grid; grid-template-columns: 34px minmax(0,1fr); gap: 10px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; margin: 0; }
.steps > li::before { content: counter(s); font: 700 15px var(--font-d); color: var(--accent-ink); background: var(--accent); width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; }
.steps h4 { margin: 2px 0 4px; font-family: var(--font-d); font-size: 15.5px; }
.steps p { margin: 0 0 6px; font-size: 14.5px; }
.steps p:last-child { margin: 0; }
dl.gl { display: grid; grid-template-columns: max-content minmax(0,1fr); gap: 6px 16px; font-size: 14.5px; }
dl.gl dt { font: 600 13.5px var(--font-m); }
dl.gl dd { margin: 0; color: var(--ink-soft); }
@media (max-width: 520px) { dl.gl { grid-template-columns: 1fr; } dl.gl dd { margin-bottom: 6px; } }
ol.refs { font-size: 13.5px; padding-left: 0; list-style: none; display: grid; gap: 6px; }
ol.refs li { scroll-margin-top: 80px; padding: 4px 8px; border-radius: 7px; margin: 0; overflow-wrap: anywhere; }
ol.refs li:target { background: var(--accent-soft); }
ol.refs .tag { font: 500 10.5px var(--font-m); color: var(--accent); letter-spacing: .06em; text-transform: uppercase; margin-right: 6px; }

/* alt bilgi */
footer.site { border-top: 1px solid var(--line); font-size: 13px; color: var(--ink-soft); }
footer.site .in { display: flex; flex-wrap: wrap; gap: 6px 24px; justify-content: space-between; padding-block: 18px 30px; }

/* filigran */
.wm { position: fixed; inset: 0; z-index: 50; pointer-events: none; user-select: none;
  background-color: var(--ink); opacity: .045;
  -webkit-mask-image: var(--wm-svg); mask-image: var(--wm-svg);
  -webkit-mask-size: 440px 220px; mask-size: 440px 220px; }
:root { --wm-svg: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='440' height='220'%3E%3Cg font-family='Arial,Helvetica,sans-serif' font-size='17' font-weight='700' transform='rotate(-24 220 110)'%3E%3Ctext x='20' y='70'%3EProf. Dr. Burhanettin Uluda%C4%9F%3C/text%3E%3Ctext x='240' y='180'%3EProf. Dr. Burhanettin Uluda%C4%9F%3C/text%3E%3C/g%3E%3C/svg%3E"); }
@media print { .top, nav.toc { display: none; } .doc { display: block; } .wm { opacity: .07; print-color-adjust: exact; -webkit-print-color-adjust: exact; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }