/* vidcapture landing — a screen recorder's HUD: viewfinder, REC red,
   timelines. Plain CSS, system fonts, no build step. Dark by default;
   light follows prefers-color-scheme. */

:root {
  --bg: #0e0f11;
  --surface: #15171a;
  --surface-2: #1c1f23;
  --line: #262a30;
  --line-strong: #3a3f47;
  --text: #e9e7e2;
  --muted: #8d929a;
  --rec: #ff453a;
  --rec-soft: rgba(255, 69, 58, 0.16);
  --label: #ffcc00;
  --label-soft: rgba(255, 204, 0, 0.16);
  --term-bg: #0a0b0c;
  --term-text: #e9e7e2;
  --term-muted: #7d828a;

  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --radius: 10px;
  --wrap: 920px;

  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f2ed;
    --surface: #ffffff;
    --surface-2: #ebe8e1;
    --line: #dcd8cf;
    --line-strong: #b9b4a9;
    --text: #17181b;
    --muted: #5e636b;
    --rec: #d92d20;
    --rec-soft: rgba(217, 45, 32, 0.12);
    --label: #a77c00;
    --label-soft: rgba(201, 150, 0, 0.16);
    color-scheme: light;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.65 var(--mono);
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--rec);
  color: #fff;
}

a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--line-strong);
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-color: var(--rec);
}

:focus-visible {
  outline: 2px solid var(--rec);
  outline-offset: 3px;
}

code,
kbd {
  font-family: inherit;
  font-size: 0.92em;
}

:not(pre) > code {
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: var(--surface-2);
}

kbd {
  display: inline-block;
  min-width: 1.5em;
  padding: 0 0.35em;
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 4px;
  text-align: center;
  line-height: 1.4;
}

h1,
h2,
h3 {
  line-height: 1.2;
  letter-spacing: -0.02em;
}

p {
  margin: 0 0 1em;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 16px;
}

@media (min-width: 640px) {
  .wrap {
    padding: 0 24px;
  }
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: 16px;
  top: 12px;
  z-index: 10;
  padding: 6px 10px;
  background: var(--surface);
  border: 1px solid var(--line);
}

/* ---------- header ---------- */

.site-head {
  position: sticky;
  top: 0;
  z-index: 5;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.head-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 56px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  text-decoration: none;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--rec);
  box-shadow: 0 0 0 4px var(--rec-soft);
  animation: blink 1.6s steps(1, end) infinite;
}

.site-head nav {
  display: flex;
  gap: 18px;
  font-size: 13px;
}

.site-head nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-head nav a:hover {
  color: var(--text);
}

@media (max-width: 720px) {
  .site-head nav a:not(:last-child) {
    display: none;
  }
}

/* ---------- hero / viewfinder ---------- */

.viewfinder {
  --c: var(--line-strong);
  --len: 22px;
  position: relative;
  margin: 32px 0 28px;
  padding: 64px 20px;
  background:
    linear-gradient(var(--c), var(--c)) top left / var(--len) 2px no-repeat,
    linear-gradient(var(--c), var(--c)) top left / 2px var(--len) no-repeat,
    linear-gradient(var(--c), var(--c)) top right / var(--len) 2px no-repeat,
    linear-gradient(var(--c), var(--c)) top right / 2px var(--len) no-repeat,
    linear-gradient(var(--c), var(--c)) bottom left / var(--len) 2px no-repeat,
    linear-gradient(var(--c), var(--c)) bottom left / 2px var(--len) no-repeat,
    linear-gradient(var(--c), var(--c)) bottom right / var(--len) 2px no-repeat,
    linear-gradient(var(--c), var(--c)) bottom right / 2px var(--len) no-repeat;
}

@media (min-width: 640px) {
  .viewfinder {
    margin-top: 48px;
    padding: 88px 56px;
  }
}

.hud {
  position: absolute;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.hud-tl { top: 14px; left: 18px; }
.hud-tr { top: 14px; right: 18px; font-variant-numeric: tabular-nums; }
.hud-bl { bottom: 14px; left: 18px; }
.hud-br { bottom: 14px; right: 18px; }

.hud kbd {
  font-size: 11px;
}

.rec {
  color: var(--rec);
  font-weight: 700;
  animation: blink 1.6s steps(1, end) infinite;
}

@media (max-width: 520px) {
  .hud-bl,
  .hud-br {
    display: none;
  }
}

@keyframes blink {
  50% { opacity: 0.25; }
}

.hero {
  max-width: 680px;
}

.eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--rec);
}

h1 {
  margin: 0 0 20px;
  font-size: clamp(28px, 6vw, 46px);
  font-weight: 800;
}

.lede {
  max-width: 60ch;
  color: var(--muted);
}

.hero-links {
  margin: 18px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.hero-links span {
  margin: 0 6px;
  color: var(--line-strong);
}

/* ---------- install command ---------- */

.cmd {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 440px;
  margin-top: 28px;
  padding: 6px 6px 6px 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.cmd .p {
  color: var(--rec);
}

.cmd code {
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  white-space: nowrap;
  background: none;
  padding: 0;
  font-size: 14px;
}

.copy {
  flex: none;
  padding: 8px 14px;
  font: inherit;
  font-size: 13px;
  color: #fff;
  background: var(--rec);
  border: 0;
  border-radius: 7px;
  cursor: pointer;
}

.copy:hover {
  filter: brightness(1.1);
}

/* ---------- terminal ---------- */

.terminal {
  overflow: hidden;
  background: var(--term-bg);
  color: var(--term-text);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.term-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 11px 14px;
  border-bottom: 1px solid #1d2024;
}

.term-bar span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #2c3036;
}

.term-bar span:first-child {
  background: var(--rec);
}

.term-bar em {
  margin-left: auto;
  font-style: normal;
  font-size: 12px;
  color: var(--term-muted);
}

pre {
  margin: 0;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.7;
}

.terminal pre {
  padding: 18px;
}

.p {
  color: var(--rec);
  user-select: none;
}

.o {
  color: var(--term-muted);
}

.m {
  color: var(--muted);
}

/* ---------- steps ---------- */

.step {
  padding-top: 72px;
}

.step-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
}

.step-n {
  font-size: 13px;
  color: var(--rec);
  font-variant-numeric: tabular-nums;
}

.step h2,
.section-h {
  margin: 0;
  font-size: clamp(22px, 4vw, 28px);
}

.step h2 code {
  padding: 0;
  background: none;
  font-size: 1em;
}

.step > p {
  max-width: 68ch;
  color: var(--muted);
}

.snippet {
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.note {
  margin-top: 16px;
  max-width: 68ch;
  font-size: 13px;
  color: var(--muted);
}

/* ---------- timelines ---------- */

.track,
.player {
  margin: 24px 0;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.ruler {
  position: relative;
  height: 16px;
  font-size: 11px;
  line-height: 16px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.ruler span {
  position: absolute;
  left: var(--at);
  transform: translateX(-50%);
  white-space: nowrap;
}

.ruler span:first-child { transform: none; }
.ruler span:last-child { transform: translateX(-100%); }

.track .ruler {
  margin-bottom: 6px;
}

.player .ruler {
  margin-top: 6px;
}

.lane {
  position: relative;
  height: 44px;
  border-radius: 6px;
  background:
    repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 10%),
    var(--surface-2);
}

.clip {
  position: absolute;
  top: 7px;
  bottom: 7px;
  left: var(--a);
  width: calc(var(--b) - var(--a));
  padding: 0 8px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  line-height: 28px;
  font-size: 12px;
  border-radius: 5px;
}

.rec-clip {
  background: var(--rec-soft);
  border: 1px solid var(--rec);
  color: var(--text);
}

.rec-clip + .rec-clip {
  border-left-style: dashed;
}

@media (max-width: 520px) {
  .clip { padding: 0 5px; font-size: 11px; }
}

.rec-clip.live {
  color: var(--rec);
}

.src-clip {
  background: repeating-linear-gradient(-45deg, transparent 0 6px, var(--line) 6px 7px);
  border: 1px solid var(--line-strong);
}

.range {
  position: absolute;
  top: 2px;
  bottom: 2px;
  left: var(--a);
  width: calc(var(--b) - var(--a));
  background: var(--rec-soft);
  border-left: 2px solid var(--rec);
  border-right: 2px solid var(--rec);
}

.mark {
  position: absolute;
  bottom: calc(100% + 4px);
  font-size: 11px;
  color: var(--rec);
  white-space: nowrap;
}

.mark.in { left: -2px; }
.mark.out { right: -2px; }

.track figcaption {
  margin-top: 12px;
  font-size: 12px;
  color: var(--muted);
  overflow-wrap: anywhere;
}

#cut .ruler span {
  position: absolute;
  left: var(--at);
  transform: translateX(-50%);
  white-space: nowrap;
}

.ruler span:first-child { transform: none; }
.ruler span:last-child { transform: translateX(-100%); }

.track .ruler {
  margin-bottom: 26px;
}

/* ---------- label preview ---------- */

.screen {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  margin-bottom: 12px;
  border-radius: 6px;
  background: linear-gradient(135deg, #2b3440, #151a21 60%, #1d1a24);
  container-type: inline-size;
}

.screen-ui span {
  position: absolute;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.screen-ui span:nth-child(1) { left: 6%; top: 12%; width: 52%; height: 62%; }
.screen-ui span:nth-child(2) { left: 62%; top: 12%; width: 32%; height: 30%; }
.screen-ui span:nth-child(3) { left: 62%; top: 46%; width: 32%; height: 28%; }
.screen-ui span:nth-child(4) { left: 0; top: 0; width: 100%; height: 5%; border-radius: 0; }

.caption {
  position: absolute;
  left: 50%;
  bottom: 8%;
  transform: translateX(-50%);
  padding: 0.3em 0.7em;
  white-space: nowrap;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(12px, 4.4cqw, 26px);
  color: #fff;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
}

.caption.top {
  top: 10%;
  bottom: auto;
}

.caption.big {
  font-size: clamp(16px, 6.4cqw, 38px);
  color: #ffcc00;
  background: rgba(0, 0, 0, 0.7);
}

.label-lane {
  height: 38px;
}

.lbl-clip {
  top: 6px;
  bottom: 6px;
  line-height: 24px;
  background: var(--label-soft);
  border: 1px solid var(--label);
  color: var(--text);
}

.lbl-clip + .lbl-clip {
  border-left-style: dashed;
}

.playhead {
  position: absolute;
  top: -4px;
  bottom: -4px;
  left: 0;
  width: 2px;
  margin-left: -1px;
  background: var(--rec);
}

.playhead::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -4px;
  border: 5px solid transparent;
  border-top-color: var(--rec);
}

/* 12 s loop standing in for 3m30s: boundaries at 1m32s (43.8%) and 2m (57.1%). */
.playhead { animation: play 12s linear infinite; }
.cap-1 { animation: cap1 12s linear infinite; }
.cap-2 { animation: cap2 12s linear infinite; }
.cap-3 { animation: cap3 12s linear infinite; }

@keyframes play {
  from { left: 0; }
  to { left: 100%; }
}

@keyframes cap1 {
  0%, 43.7% { opacity: 1; }
  43.8%, 100% { opacity: 0; }
}

@keyframes cap2 {
  0%, 43.7% { opacity: 0; }
  43.8%, 57% { opacity: 1; }
  57.1%, 100% { opacity: 0; }
}

@keyframes cap3 {
  0%, 57% { opacity: 0; }
  57.1%, 100% { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .dot,
  .rec,
  .playhead,
  .caption {
    animation: none;
  }
  .playhead { left: 50%; }
  .cap-2 { opacity: 1; }
}

/* ---------- table ---------- */

.table-scroll {
  margin-top: 20px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

caption {
  padding: 12px 14px;
  text-align: left;
  font-weight: 700;
  border-bottom: 1px solid var(--line);
}

th,
td {
  padding: 9px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

thead th {
  font-weight: 400;
  color: var(--muted);
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.1em;
}

tbody tr:last-child th,
tbody tr:last-child td {
  border-bottom: 0;
}

tbody th {
  white-space: nowrap;
}

/* ---------- details, requirements, closing ---------- */

.section-h {
  padding-top: 72px;
  margin-bottom: 20px;
}

.grid {
  display: grid;
  gap: 14px;
}

@media (min-width: 720px) {
  .grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.grid article {
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.grid h3 {
  margin: 0 0 8px;
  font-size: 15px;
}

.grid p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.reqs {
  margin: 0;
  padding: 0;
  list-style: none;
  max-width: 72ch;
}

.reqs li {
  position: relative;
  padding: 0 0 14px 22px;
  color: var(--muted);
}

.reqs li::before {
  content: "›";
  position: absolute;
  left: 4px;
  color: var(--rec);
}

.reqs strong {
  color: var(--text);
}

.reqs code {
  overflow-wrap: anywhere;
}

.closing {
  padding-bottom: 72px;
}

.closing .cmd {
  margin-top: 0;
}

/* ---------- footer ---------- */

.site-foot {
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
}

.foot-inner {
  padding-top: 24px;
  padding-bottom: 32px;
}

.foot-inner p {
  margin: 0 0 4px;
}

.fine {
  font-size: 12px;
}