/* Nerzen NTP — ntp.nerzen.com */
:root {
  --bg: #060a13; --bg2: #0a101c; --surface: #0e1524; --surface2: #131c2f; --line: #1d2942; --line2: #2a3959;
  --text: #e8eefb; --muted: #8c9ab8; --faint: #5d6b8a;
  --accent: #3b82f6; --accent2: #22b8f0; --accent-soft: rgba(59,130,246,.14);
  --ok: #2fd38a; --ok-soft: rgba(47,211,138,.13); --warn: #f5b547; --warn-soft: rgba(245,181,71,.13); --bad: #f2555a; --bad-soft: rgba(242,85,90,.13);
  --mono: ui-monospace, "Cascadia Mono", "Cascadia Code", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --r: 14px; --wrap: min(1240px, 100% - 40px);
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #f4f6fb; --bg2: #eef1f8; --surface: #ffffff; --surface2: #f6f8fc; --line: #dfe5f0; --line2: #c9d2e3;
  --text: #0c1525; --muted: #56637d; --faint: #8693ab;
  --accent: #1d5fe0; --accent2: #0d8fd0; --accent-soft: rgba(29,95,224,.09);
  --ok: #0f9d62; --ok-soft: rgba(15,157,98,.1); --warn: #b97a06; --warn-soft: rgba(185,122,6,.11); --bad: #d43a40; --bad-soft: rgba(212,58,64,.1);
  color-scheme: light;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 var(--sans); overflow-x: hidden; }
a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.2; margin: 0; letter-spacing: -.015em; text-wrap: balance; }
p { margin: 0 0 1em; }
code, pre, .mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
:focus-visible { outline: 2px solid var(--accent2); outline-offset: 2px; border-radius: 6px; }
.wrap { width: var(--wrap); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 99; }
.skip:focus { left: 12px; }

/* üst çubuk */
.top { position: sticky; top: 0; z-index: 40; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 18px; height: 62px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; font-size: 17px; letter-spacing: -.01em; }
.brand:hover { text-decoration: none; }
.brand img { width: 26px; height: 29px; }
.brand b { color: var(--accent2); font-weight: 700; }
.nav { display: flex; gap: 2px; margin-left: 10px; overflow-x: auto; scrollbar-width: none; }
.nav::-webkit-scrollbar { display: none; }
.nav a { color: var(--muted); padding: 7px 12px; border-radius: 9px; font-size: 14.5px; white-space: nowrap; }
.nav a:hover { color: var(--text); background: var(--surface2); text-decoration: none; }
.nav a.on { color: var(--text); background: var(--accent-soft); }
.top .sp { flex: 1; }
.pill { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; padding: 5px 11px; border-radius: 99px; border: 1px solid var(--line); color: var(--muted); background: var(--surface); white-space: nowrap; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--faint); flex: none; }
.dot.ok { background: var(--ok); box-shadow: 0 0 0 3px var(--ok-soft); }
.dot.warn { background: var(--warn); box-shadow: 0 0 0 3px var(--warn-soft); }
.dot.bad { background: var(--bad); box-shadow: 0 0 0 3px var(--bad-soft); }
.icon-btn { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 10px; border: 1px solid var(--line); background: var(--surface); color: var(--muted); cursor: pointer; }
.icon-btn:hover { color: var(--text); border-color: var(--line2); }
.icon-btn svg { width: 17px; height: 17px; }
:root[data-theme="light"] .i-moon, :root:not([data-theme="light"]) .i-sun { display: none; }

/* hero */
.hero { position: relative; padding: 56px 0 44px; }
.hero::before { content: ""; position: absolute; inset: -62px 0 auto 0; height: 520px; pointer-events: none;
  background: radial-gradient(700px 320px at 78% 30%, rgba(34,184,240,.13), transparent 70%), radial-gradient(620px 300px at 12% 0%, rgba(59,130,246,.16), transparent 70%); }
.hero .wrap { position: relative; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: 48px; align-items: center; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.tag { font: 500 12.5px/1 var(--mono); padding: 6px 10px; border-radius: 7px; border: 1px solid var(--line); color: var(--muted); background: var(--surface); }
.tag.hi { color: var(--accent2); border-color: color-mix(in srgb, var(--accent2) 40%, var(--line)); background: var(--accent-soft); }
.hero h1 { font-size: clamp(32px, 4.6vw, 54px); font-weight: 750; letter-spacing: -.03em; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, var(--accent), var(--accent2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { color: var(--muted); font-size: 17.5px; max-width: 62ch; margin: 20px 0 26px; }
.lead strong { color: var(--text); font-weight: 600; }

.host { border: 1px solid var(--line); background: var(--surface); border-radius: var(--r); overflow: hidden; max-width: 560px; }
.host button.name { all: unset; box-sizing: border-box; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 12px; width: 100%; padding: 16px 18px; font: 600 clamp(20px, 2.6vw, 26px)/1.1 var(--mono); color: var(--text); }
.host button.name:hover { background: var(--surface2); }
.host button.name small { font: 500 12px var(--sans); color: var(--muted); border: 1px solid var(--line); padding: 4px 9px; border-radius: 99px; white-space: nowrap; }
.host dl { display: grid; grid-template-columns: repeat(4, auto); gap: 0; margin: 0; border-top: 1px solid var(--line); }
.host dl div { padding: 11px 18px; border-right: 1px solid var(--line); min-width: 0; }
.host dl div:last-child { border-right: 0; }
dt, .lbl { font: 600 11px/1.3 var(--sans); letter-spacing: .08em; text-transform: uppercase; color: var(--faint); }
.host dd { margin: 3px 0 0; font: 500 13.5px var(--mono); color: var(--text); overflow-wrap: anywhere; }

/* saat */
.clock { position: relative; border: 1px solid var(--line); background: linear-gradient(180deg, var(--surface), var(--bg2)); border-radius: 22px; padding: 26px 26px 22px; box-shadow: 0 30px 80px -40px rgba(34,184,240,.35); }
.clock .ring { display: block; width: min(100%, 330px); margin: 0 auto; }
.ring .tk { stroke: var(--line2); stroke-width: 2; stroke-linecap: round; }
.ring .tk.q { stroke-width: 3; }
.ring .tk.on { stroke: var(--accent2); }
.ring .tk.now { stroke: #fff; }
:root[data-theme="light"] .ring .tk.now { stroke: var(--text); }
.clock .face { position: absolute; left: 0; right: 0; top: 26px; aspect-ratio: 1; width: min(calc(100% - 52px), 330px); margin: 0 auto; display: grid; place-content: center; text-align: center; }
.face .zone { font-size: 12.5px; color: var(--muted); letter-spacing: .04em; }
.face .hms { font: 600 clamp(34px, 5vw, 46px)/1.05 var(--mono); letter-spacing: -.02em; margin: 6px 0 4px; }
.face .hms i { font-style: normal; font-size: .45em; color: var(--accent2); }
.face .utc { font: 500 13px var(--mono); color: var(--muted); }
.clock .unix { display: flex; justify-content: space-between; align-items: baseline; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); font: 500 14px var(--mono); }
.clock .unix span:first-child { font: 600 11px var(--sans); letter-spacing: .08em; color: var(--faint); }

/* sapma ölçer */
.drift { margin-top: 18px; border: 1px solid var(--line); background: var(--surface); border-radius: var(--r); padding: 16px 18px; max-width: 560px; }
.drift .row { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.drift .val { font: 650 26px/1 var(--mono); }
.drift .verdict { font-size: 13px; padding: 3px 9px; border-radius: 99px; }
.verdict.ok { color: var(--ok); background: var(--ok-soft); } .verdict.warn { color: var(--warn); background: var(--warn-soft); } .verdict.bad { color: var(--bad); background: var(--bad-soft); }
.bar { position: relative; height: 10px; border-radius: 99px; margin: 16px 0 6px; background: linear-gradient(90deg, var(--bad-soft), var(--warn-soft) 25%, var(--ok-soft) 42%, var(--ok-soft) 58%, var(--warn-soft) 75%, var(--bad-soft)); border: 1px solid var(--line); }
.bar .band { position: absolute; top: -1px; bottom: -1px; background: color-mix(in srgb, var(--accent2) 30%, transparent); border-radius: 99px; }
.bar .mk { position: absolute; top: -5px; width: 4px; height: 18px; margin-left: -2px; border-radius: 3px; background: var(--text); transition: left .5s cubic-bezier(.2,.8,.2,1); }
.bar .mid { position: absolute; left: 50%; top: -3px; bottom: -3px; width: 1px; background: var(--line2); }
.scale { display: flex; justify-content: space-between; font: 500 11px var(--mono); color: var(--faint); }
.drift p { margin: 10px 0 0; font-size: 13.5px; color: var(--muted); }

/* bölümler */
section.blk { padding: 44px 0; border-top: 1px solid var(--line); }
.sh { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.sh h2 { font-size: clamp(22px, 2.6vw, 28px); font-weight: 700; }
.sh p { margin: 0; color: var(--muted); font-size: 14px; }
.grid { display: grid; gap: 14px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); } .g5 { grid-template-columns: repeat(5, minmax(0, 1fr)); } .g6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.card { border: 1px solid var(--line); background: var(--surface); border-radius: var(--r); padding: 18px; min-width: 0; }
.stat .n { font: 650 clamp(22px, 2.4vw, 30px)/1.1 var(--mono); letter-spacing: -.02em; margin: 2px 0 8px; overflow-wrap: anywhere; }
.stat .n small { font-size: .55em; color: var(--muted); font-weight: 500; margin-left: 3px; }
.stat .d { font-size: 13px; color: var(--muted); margin-top: 6px; }
.banner { display: flex; align-items: center; gap: 14px; padding: 16px 18px; border-radius: var(--r); border: 1px solid color-mix(in srgb, var(--ok) 35%, var(--line)); background: var(--ok-soft); margin-bottom: 14px; }
.banner.warn { border-color: color-mix(in srgb, var(--warn) 35%, var(--line)); background: var(--warn-soft); }
.banner.bad { border-color: color-mix(in srgb, var(--bad) 35%, var(--line)); background: var(--bad-soft); }
.banner b { display: block; font-size: 17px; } .banner span { font-size: 13.5px; color: var(--muted); }
.banner .dot { width: 12px; height: 12px; }
.skel { color: var(--faint); }

/* grafik */
.chart { position: relative; }
.chart svg { display: block; width: 100%; height: 150px; overflow: visible; }
.chart .ax { font: 500 11px var(--mono); fill: var(--faint); }
.chart .gl { stroke: var(--line); stroke-width: 1; }
.chart .ln { fill: none; stroke: var(--accent2); stroke-width: 1.8; stroke-linejoin: round; stroke-linecap: round; }
.chart .ar { fill: color-mix(in srgb, var(--accent2) 14%, transparent); }
.chart .ln.b { stroke: var(--accent); } .chart .ar.b { fill: color-mix(in srgb, var(--accent) 14%, transparent); }
.chart h3 { font-size: 15px; margin-bottom: 4px; } .chart .sub { font-size: 13px; color: var(--muted); margin-bottom: 12px; }
.chart .empty { height: 150px; display: grid; place-items: center; color: var(--faint); font-size: 14px; }

/* tablo */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
th { text-align: left; font: 600 11px var(--sans); letter-spacing: .08em; text-transform: uppercase; color: var(--faint); padding: 12px 16px; border-bottom: 1px solid var(--line); white-space: nowrap; }
td { padding: 12px 16px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
.flag { width: 22px; height: 16px; border-radius: 3px; object-fit: cover; vertical-align: -3px; margin-right: 9px; box-shadow: 0 0 0 1px var(--line); }
.st { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; padding: 3px 10px; border-radius: 99px; background: var(--surface2); color: var(--muted); white-space: nowrap; }
.st.selected { color: var(--ok); background: var(--ok-soft); } .st.combined { color: var(--accent2); background: var(--accent-soft); }
.st.falseticker, .st.unstable { color: var(--bad); background: var(--bad-soft); }
.badge { font: 600 11px var(--mono); padding: 3px 7px; border-radius: 6px; border: 1px solid var(--line); color: var(--muted); }
.badge.nts { color: var(--accent2); border-color: color-mix(in srgb, var(--accent2) 40%, var(--line)); }
.cmp td:first-child { color: var(--muted); width: 22%; } .cmp td:nth-child(3) { color: var(--text); } .cmp td:nth-child(2) { color: var(--muted); }
.cmp th:nth-child(3) { color: var(--accent2); }
.note { color: var(--muted); font-size: 14.5px; margin-top: 16px; max-width: 90ch; }
.note strong { color: var(--text); }

/* adımlar */
.steps { counter-reset: s; }
.step { position: relative; }
.step .no { font: 600 12px var(--mono); color: var(--accent2); }
.step h3 { font-size: 16.5px; margin: 8px 0 8px; }
.step p { font-size: 14px; color: var(--muted); margin: 0 0 12px; }
.step .foot { font: 500 12px var(--mono); color: var(--faint); border-top: 1px dashed var(--line); padding-top: 10px; }

/* kod kutuları */
.code { border: 1px solid var(--line); background: var(--surface); border-radius: var(--r); overflow: hidden; min-width: 0; }
.code header { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-bottom: 1px solid var(--line); font-size: 14px; font-weight: 600; }
.code header small { font-weight: 500; color: var(--muted); font-size: 12.5px; }
.code header button { margin-left: auto; font: 500 12.5px var(--sans); color: var(--muted); background: var(--surface2); border: 1px solid var(--line); border-radius: 8px; padding: 4px 10px; cursor: pointer; }
.code header button:hover { color: var(--text); border-color: var(--line2); }
.code header button.done { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, var(--line)); }
.code pre { margin: 0; padding: 14px; font-size: 13px; line-height: 1.65; overflow-x: auto; color: var(--text); background: var(--bg2); }
.code pre .c { color: var(--faint); }

.risk h3 { font-size: 16px; } .risk .thr { font: 600 12.5px var(--mono); color: var(--warn); margin: 6px 0 8px; } .risk p { font-size: 14px; color: var(--muted); margin: 0; }
a.card.link { color: var(--text); display: block; transition: border-color .15s, transform .15s; }
a.card.link:hover { text-decoration: none; border-color: var(--accent2); transform: translateY(-2px); }
a.card.link h3 { font-size: 16.5px; margin: 6px 0; } a.card.link p { font-size: 14px; color: var(--muted); margin: 0 0 10px; } a.card.link .go { font-size: 13.5px; color: var(--accent2); }

/* içerik sayfaları */
.page-head { padding: 48px 0 26px; }
.page-head h1 { font-size: clamp(28px, 4vw, 42px); font-weight: 750; letter-spacing: -.025em; }
.page-head p { color: var(--muted); font-size: 17px; max-width: 70ch; margin: 14px 0 0; }
.doc { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 40px; padding-bottom: 60px; align-items: start; }
.toc { position: sticky; top: 84px; font-size: 14px; border-left: 1px solid var(--line); padding-left: 14px; max-height: calc(100vh - 110px); overflow: auto; }
.toc a { display: block; color: var(--muted); padding: 4px 0; } .toc a:hover { color: var(--text); text-decoration: none; }
.prose { min-width: 0; }
.prose h2 { font-size: 24px; margin: 44px 0 14px; padding-top: 6px; scroll-margin-top: 80px; } .prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 17.5px; margin: 28px 0 10px; scroll-margin-top: 80px; }
.prose p, .prose li { color: var(--muted); } .prose strong { color: var(--text); font-weight: 600; }
.prose ul, .prose ol { padding-left: 22px; margin: 0 0 1em; } .prose li { margin: 4px 0; }
.prose code { font-size: .9em; background: var(--surface2); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; color: var(--text); }
.prose .code { margin: 12px 0 18px; } .prose .code code { background: none; border: 0; padding: 0; }
.prose .tbl-wrap { margin: 12px 0 18px; }
.prose details { border: 1px solid var(--line); background: var(--surface); border-radius: 12px; margin: 10px 0; }
.prose summary { cursor: pointer; padding: 14px 18px; font-weight: 600; color: var(--text); list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.prose summary::after { content: "+"; color: var(--accent2); font: 500 20px/1 var(--mono); }
.prose details[open] summary::after { content: "−"; }
.prose summary::-webkit-details-marker { display: none; }
.prose details > div { padding: 0 18px 16px; } .prose details > div p:last-child { margin: 0; }
.callout { border: 1px solid var(--line); border-left: 3px solid var(--accent2); background: var(--surface); border-radius: 10px; padding: 14px 16px; margin: 14px 0 18px; font-size: 14.5px; color: var(--muted); }
.callout strong { color: var(--text); }

/* alt bilgi */
footer { border-top: 1px solid var(--line); background: var(--bg2); padding: 40px 0 30px; margin-top: 20px; font-size: 14px; color: var(--muted); }
footer .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; }
footer h4 { margin: 0 0 10px; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--faint); }
footer a { display: block; color: var(--muted); padding: 3px 0; } footer a:hover { color: var(--text); text-decoration: none; }
footer .fine { margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--faint); }
.toast { position: fixed; left: 50%; bottom: 26px; transform: translate(-50%, 20px); background: var(--text); color: var(--bg); padding: 9px 16px; border-radius: 99px; font-size: 14px; font-weight: 600; opacity: 0; pointer-events: none; transition: .25s; z-index: 60; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (min-width: 1700px) { :root { --wrap: min(1480px, 100% - 80px); } }
@media (max-width: 1000px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 30px; } .clock { max-width: 420px; }
  .g6 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .g5 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .doc { grid-template-columns: 1fr; } .toc { display: none; }
  footer .cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  :root { --wrap: calc(100% - 32px); }
  .top .pill { display: none; } .nav { margin-left: 0; } .top .wrap { gap: 8px; }
  .hero { padding: 32px 0 30px; }
  .g2, .g3, .g5, .g6 { grid-template-columns: 1fr; } .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .host dl { grid-template-columns: 1fr 1fr; } .host dl div:nth-child(2) { border-right: 0; } .host dl div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  section.blk { padding: 34px 0; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }