/* InterviewGrind site: the app's "Paper and ink" (light) and "Terminal night" (dark) palettes and fonts.
   Base rules serve the privacy page; everything under .landing is the home page. */

@font-face {
  font-family: 'Newsreader';
  src: url('assets/fonts/newsreader-600.woff') format('woff');
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('assets/fonts/inter-400.woff') format('woff');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('assets/fonts/inter-600.woff') format('woff');
  font-weight: 600;
  font-display: swap;
}

:root {
  --bg: #faf7f0;
  --band: #f2ecdf;
  --surface: #fffdf8;
  --text: #1f2a44;
  --muted: #4a5268;
  --accent: #1f2a44;
  --on-accent: #faf7f0;
  --pro: #9a4a12;
  --rule: #e4dccb;
  --good: #2f6b47;
  --good-soft: #e3efe6;
  --bad: #b3261e;
  --bad-soft: #f8e3e1;
  --pick: #e3e8f2;
  --code-bg: #f1ebdf;
  --kw: #9a4a12;
  --shadow: 0 18px 36px rgba(31, 42, 68, 0.14);
  --display: 'Newsreader', Georgia, 'Times New Roman', serif;
  --body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1311;
    --band: #131a17;
    --surface: #182019;
    --text: #d3ddd7;
    --muted: #9aaba2;
    --accent: #5fbf8a;
    --on-accent: #0b110e;
    --pro: #e0b050;
    --rule: #26302b;
    --good: #5fbf8a;
    --good-soft: #16261d;
    --bad: #ef7b72;
    --bad-soft: #2c1a18;
    --pick: #1e2b33;
    --code-bg: #101614;
    --kw: #e0b050;
    --shadow: 0 18px 36px rgba(0, 0, 0, 0.45);
  }
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 var(--body);
  -webkit-text-size-adjust: 100%;
}

main {
  max-width: 680px;
  margin: 0 auto;
  padding: 48px 20px 72px;
}

h1 {
  font: 600 2.2rem/1.15 var(--display);
  margin: 0 0 8px;
}

h2 {
  font-size: 1.05rem;
  margin: 32px 0 6px;
}

p,
li {
  color: var(--muted);
}

.lead {
  color: var(--text);
  font-size: 1.1rem;
}

.eyebrow,
.meta {
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--pro);
  margin: 0 0 8px;
}

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

a {
  color: var(--accent);
  text-underline-offset: 3px;
}

.eyebrow a {
  color: inherit;
  text-decoration: none;
}

.links {
  margin-top: 40px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}

code {
  font: 0.9em var(--mono);
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 5px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- Home page ---------- */

.landing main {
  max-width: none;
  padding: 0;
}

.landing .wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

.landing .wrap.narrow {
  max-width: 720px;
}

.landing section {
  padding: 72px 0;
}

.landing section.wrap {
  padding-top: 72px;
  padding-bottom: 72px;
}

.landing .band {
  background: var(--band);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.landing h2 {
  font: 600 clamp(1.8rem, 4.5vw, 2.5rem)/1.12 var(--display);
  margin: 0 0 10px;
  color: var(--text);
  text-wrap: balance;
}

.landing h3 {
  font: 600 1.35rem/1.2 var(--display);
  margin: 0 0 12px;
}

.section-head {
  max-width: 680px;
  margin-bottom: 36px;
}

.sub {
  font-size: 1.08rem;
  margin: 0;
}

.fine {
  font-size: 0.85rem;
  margin: 12px 0 0;
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--on-accent);
  font: 600 1rem/1 var(--body);
  text-decoration: none;
  cursor: pointer;
}

.button:hover {
  filter: brightness(1.12);
}

.button:disabled {
  opacity: 0.45;
  cursor: default;
  filter: none;
}

.button.small {
  min-height: 38px;
  padding: 0 16px;
  font-size: 0.9rem;
}

.button.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--rule);
}

.button.wide {
  width: 100%;
}

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

/* Top bar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--rule);
}

.topbar-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  text-decoration: none;
  font: 600 1.2rem/1 var(--display);
}

.mark {
  width: 34px;
  height: 34px;
}

.mark .brace {
  stroke: var(--text);
}

.mark .chev {
  stroke: var(--pro);
}

.nav {
  display: none;
  gap: 22px;
  margin-left: auto;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

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

.topbar .button {
  margin-left: auto;
}

@media (min-width: 760px) {
  .nav {
    display: flex;
  }

  .topbar .button {
    margin-left: 0;
  }
}

/* Hero */
.landing .hero {
  display: grid;
  gap: 40px;
  align-items: center;
  padding-top: 56px;
  padding-bottom: 24px;
}

.landing .hero h1 {
  font-size: clamp(2.5rem, 7vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin: 0 0 18px;
  text-wrap: balance;
}

.landing .hero .lead {
  font-size: 1.15rem;
  max-width: 34em;
  margin: 0 0 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
}

.soon {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--muted);
}

.badge img {
  display: block;
  height: 50px;
  width: auto;
}

.hero-shot {
  display: block;
  width: 100%;
  max-width: 360px;
  height: auto;
  margin: 0 auto;
  filter: drop-shadow(var(--shadow));
}

@media (min-width: 860px) {
  .landing .hero {
    grid-template-columns: 1.25fr 1fr;
    padding-top: 72px;
  }
}

/* Demo */
/* minmax(0, …) lets long code lines scroll inside .code instead of widening the page. */
.try {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
}

.demo {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 24px;
  padding: 22px;
  box-shadow: var(--shadow);
  max-width: 640px;
  width: 100%;
}

@media (min-width: 900px) {
  .try {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    gap: 48px;
    align-items: start;
  }

  .try .section-head {
    position: sticky;
    top: 110px;
  }
}

.demo-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 16px;
}

.dots {
  display: inline-flex;
  gap: 6px;
}

.dots i {
  width: 22px;
  height: 5px;
  border-radius: 3px;
  background: var(--rule);
}

.dots i.done {
  background: var(--accent);
}

.dots i.now {
  background: var(--pro);
}

.chips {
  display: flex;
  gap: 10px;
  align-items: center;
  margin: 0 0 10px;
  font-size: 0.9rem;
}

.chip {
  background: var(--pick);
  color: var(--text);
  font-weight: 600;
  border-radius: 999px;
  padding: 3px 12px;
}

.prompt {
  font: 600 1.25rem/1.3 var(--display);
  color: var(--text);
  margin: 0 0 16px;
}

.instruction {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 8px;
}

.code {
  background: var(--code-bg);
  border: 1px solid var(--rule);
  border-radius: 14px;
  font: 0.88rem/1.5 var(--mono);
  color: var(--text);
  margin: 0 0 16px;
  overflow-x: auto;
}

pre.code {
  padding: 14px 16px;
}

pre.code code {
  background: none;
  padding: 0;
  font: inherit;
}

.kw {
  color: var(--kw);
}

.lines {
  list-style: none;
  padding: 6px 0;
}

.line {
  display: flex;
  gap: 14px;
  width: 100%;
  text-align: left;
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 7px 14px;
  cursor: pointer;
  /* Wrap long lines (keeping indentation) so the bug line is never cut off on a phone. */
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.line:not(:disabled):hover {
  background: var(--pick);
}

.ln {
  color: var(--muted);
  min-width: 1ch;
}

.line.picked {
  background: var(--pick);
  box-shadow: inset 3px 0 var(--accent);
}

.line.right {
  background: var(--good-soft);
  box-shadow: inset 3px 0 var(--good);
}

.line.wrong {
  background: var(--bad-soft);
  box-shadow: inset 3px 0 var(--bad);
}

.options {
  display: grid;
  gap: 10px;
  margin-bottom: 16px;
}

.option {
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left;
  font: 1rem/1.3 var(--body);
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 14px;
  padding: 12px 14px;
  cursor: pointer;
}

.option:not(:disabled):hover {
  border-color: var(--muted);
}

.letter {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--band);
  font-weight: 600;
  font-size: 0.85rem;
  flex: none;
}

.option.picked {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.option.right {
  border-color: var(--good);
  background: var(--good-soft);
}

.option.right .letter {
  background: var(--good);
  color: var(--on-accent);
}

.option.wrong {
  border-color: var(--bad);
  background: var(--bad-soft);
}

.option.wrong .letter {
  background: var(--bad);
  color: #fff;
}

.option.dim {
  opacity: 0.5;
}

.feedback {
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 14px;
  border: 1px solid;
}

.feedback p {
  margin: 0 0 6px;
  color: var(--text);
}

.feedback.good {
  background: var(--good-soft);
  border-color: var(--good);
}

.feedback.bad {
  background: var(--bad-soft);
  border-color: var(--bad);
}

.verdict {
  font-weight: 600;
}

.feedback.good .verdict {
  color: var(--good);
}

.feedback.bad .verdict {
  color: var(--bad);
}

.why-label {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted) !important;
  margin-top: 10px !important;
}

.done {
  text-align: center;
  padding: 12px 4px;
}

.score {
  font: 600 3.4rem/1 var(--display);
  color: var(--text);
  margin: 6px 0 14px;
}

.done-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 22px;
}

/* Formats and gallery */
.cards {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}

.cards li {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 18px;
  padding: 18px 20px;
}

.cards p {
  margin: 8px 0 0;
}

.tag {
  font: 600 0.8rem/1 var(--body);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--pro);
}

@media (min-width: 640px) {
  .cards {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 960px) {
  .cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

.gallery {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 78%;
  gap: 16px;
  margin: 48px -20px 0;
  padding: 0 20px 8px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
}

.gallery figure {
  margin: 0;
  scroll-snap-align: start;
}

.gallery img {
  display: block;
  width: 100%;
  height: auto;
  filter: drop-shadow(var(--shadow));
}

.gallery figcaption {
  font: 600 1.1rem/1.3 var(--display);
  color: var(--text);
  text-align: center;
  margin-top: 14px;
}

@media (min-width: 760px) {
  .gallery {
    grid-auto-flow: row;
    grid-template-columns: repeat(3, 1fr);
    overflow: visible;
    margin: 56px 0 0;
    padding: 0;
  }
}

/* Tracks */
.tracks {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.tracks li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 16px;
  padding: 16px 18px;
}

.tracks strong {
  font: 600 1.15rem/1.2 var(--display);
  color: var(--text);
}

.tracks span {
  color: var(--muted);
  font-size: 0.95rem;
}

@media (min-width: 640px) {
  .tracks {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 960px) {
  .tracks {
    grid-template-columns: repeat(3, 1fr);
  }
}

.also {
  margin: 22px 0 0;
}

.also b {
  color: var(--text);
  font-weight: 600;
}

/* Stats */
.stats {
  display: grid;
  gap: 28px;
}

.stats div {
  border-top: 2px solid var(--text);
  padding-top: 14px;
}

.stats b {
  display: block;
  font: 600 3rem/1 var(--display);
  color: var(--text);
  margin-bottom: 10px;
}

@media (min-width: 760px) {
  .stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 36px;
  }
}

/* Plans */
.plans {
  display: grid;
  gap: 18px;
}

.plan {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 22px;
  padding: 26px;
}

.plan.pro {
  border: 2px solid var(--pro);
}

.plan.pro h3 {
  color: var(--pro);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.pill {
  font: 600 0.75rem/1 var(--body);
  border: 1px solid var(--pro);
  border-radius: 999px;
  padding: 5px 10px;
}

.checks {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.checks li {
  padding-left: 28px;
  position: relative;
}

.checks li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  font-weight: 600;
  color: var(--good);
}

.plan.pro .checks li::before {
  color: var(--pro);
}

@media (min-width: 760px) {
  .plans {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

/* FAQ */
details {
  border-bottom: 1px solid var(--rule);
  padding: 4px 0;
}

details summary {
  list-style: none;
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
  padding: 14px 36px 14px 0;
  position: relative;
}

details summary::-webkit-details-marker {
  display: none;
}

details summary::after {
  content: '+';
  position: absolute;
  right: 4px;
  top: 8px;
  font: 400 1.6rem/1.3 var(--body);
  color: var(--muted);
}

details[open] summary::after {
  content: '\2212';
}

details p {
  margin: 0 0 16px;
}

/* Launch-email CTA */
.cta {
  text-align: center;
}

.notify {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 26px auto 0;
  max-width: 520px;
}

.notify input[type='email'] {
  flex: 1 1 240px;
  min-height: 48px;
  border-radius: 999px;
  border: 1px solid var(--rule);
  background: var(--surface);
  color: var(--text);
  font: 1rem var(--body);
  padding: 0 20px;
}

.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
}

.form-status {
  min-height: 1.6em;
  margin: 12px 0 0;
  font-weight: 600;
  color: var(--text);
}

/* Footer */
.footer {
  border-top: 1px solid var(--rule);
  padding: 40px 0 56px;
}

.footer-inner {
  display: grid;
  gap: 8px;
}

.footer-links {
  margin: 10px 0 0;
}