/* My Interview AI — site styles
   World: warm parchment, carbon ink, serif display at weight 400, clay for marks only. */

:root {
  --paper: #f8f8f6;
  --white: #ffffff;
  --stone: #efeeeb;
  --chalk: #e7e6e1;
  --mist: #b7b7b5;
  --pebble: #9c9a92;
  --ash: #7b7974;
  --graphite: #373734;
  --ink: #121212;
  --obsidian: #000000;
  --clay: #d97757;

  --serif: "Source Serif 4", "Charter", "Georgia", serif;
  --sans: "Inter", "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;

  --r-sm: 8px;
  --r-md: 16px;
  --r-lg: 24px;
  --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.04);
  --shadow-card: 0 4px 24px rgba(18, 18, 18, 0.06);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --max: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--chalk); color: var(--ink); }
::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { background: var(--paper); }
::-webkit-scrollbar-thumb { background: var(--mist); border-radius: 8px; border: 3px solid var(--paper); }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 4px; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
img, svg { max-width: 100%; display: block; }
kbd {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 500;
  color: var(--graphite);
  background: var(--white);
  border: 1px solid var(--mist);
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 1px 7px;
  line-height: 1.4;
}

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0;
  text-wrap: balance;
}
h1 { font-size: clamp(38px, 5.2vw, 60px); line-height: 1.08; }
h2 { font-size: clamp(28px, 3vw, 36px); line-height: 1.2; }
h3 { font-size: 24px; line-height: 1.33; }
p { margin: 0; }
.lede { font-size: 18px; line-height: 1.55; color: var(--graphite); max-width: 60ch; }
.muted { color: var(--ash); }
.measure { max-width: 68ch; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
section { padding: 88px 0; }
@media (max-width: 720px) { section { padding: 64px 0; } }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--sans); font-size: 15px; font-weight: 500;
  padding: 10px 20px; border-radius: var(--r-sm);
  border: 1px solid transparent; cursor: pointer;
  text-decoration: none; line-height: 1.4;
  transition: background 160ms var(--ease-out), border-color 160ms var(--ease-out), transform 160ms var(--ease-out);
}
.btn:active { transform: translateY(1px); }
.btn-dark { background: var(--ink); color: var(--paper); }
.btn-dark:hover { background: var(--graphite); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--mist); }
.btn-ghost:hover { background: var(--white); border-color: var(--pebble); }
.btn-lg { font-size: 16px; padding: 13px 24px; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 20;
  background: rgba(248, 248, 246, 0.86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--chalk);
}
.nav .wrap { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand { font-family: var(--serif); font-size: 20px; text-decoration: none; display: inline-flex; align-items: center; gap: 10px; white-space: nowrap; }
.brand .mark { width: 10px; height: 10px; border-radius: 50%; background: var(--clay); }
.nav-links { margin-left: auto; display: flex; gap: 24px; align-items: center; }
.nav-links a { font-size: 15px; font-weight: 500; color: var(--graphite); text-decoration: none; white-space: nowrap; }
.nav-links a:hover { color: var(--ink); }
.nav-links a.btn-dark { color: var(--paper); }
.nav-links a.btn-dark:hover { color: var(--paper); }
@media (max-width: 720px) {
  .nav-links a.hide-sm { display: none; }
  .nav .wrap { gap: 16px; }
  .nav-links { gap: 16px; }
  .brand { font-size: 18px; }
}

/* Hero */
.hero { padding: 72px 0 40px; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 56px; align-items: center; }
@media (max-width: 960px) { .hero .wrap { grid-template-columns: 1fr; gap: 40px; } }
.hero-copy { display: flex; flex-direction: column; gap: 24px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.hero-note { font-size: 14px; color: var(--ash); }

/* The session panel: a working miniature of the app */
.session {
  background: var(--white);
  border: 1px solid var(--chalk);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-card);
  padding: 24px;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 16px;
  min-height: 460px;
}
.session-bar { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--ash); }
.session-bar .live { width: 8px; height: 8px; border-radius: 50%; background: var(--clay); }
.session-bar .live.idle { background: var(--mist); }
.session-bar .right { margin-left: auto; display: flex; gap: 6px; align-items: center; }
.transcript { display: flex; flex-direction: column; gap: 8px; }
.t-line {
  display: flex; gap: 12px; font-size: 15px; line-height: 1.45;
  padding: 10px 12px; border-radius: 10px; background: var(--stone); color: var(--graphite);
}
.t-line time { color: var(--pebble); font-size: 12px; padding-top: 2px; white-space: nowrap; font-variant-numeric: tabular-nums; }
.t-live {
  min-height: 46px; padding: 10px 12px; border-radius: 10px;
  border: 1px dashed var(--pebble); color: var(--ink); font-size: 15px; line-height: 1.45;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  cursor: pointer;
}
.t-live:empty { display: none; }
.t-live .enter { font-size: 12px; color: var(--ash); white-space: nowrap; display: inline-flex; gap: 6px; align-items: center; }
.t-live .caret { display: inline-block; width: 2px; height: 1.1em; background: var(--ink); margin-left: 2px; vertical-align: text-bottom; animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.answer {
  border-top: 1px solid var(--chalk);
  padding-top: 16px;
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.5;
  color: var(--ink);
  white-space: pre-wrap;
  min-height: 120px;
}
.answer .thinking { font-family: var(--sans); font-size: 13px; color: var(--ash); animation: blink 1.6s ease-in-out infinite; }
.answer .cursor { display: inline-block; width: 8px; height: 1em; background: var(--ink); margin-left: 3px; vertical-align: -2px; animation: blink 0.8s steps(2) infinite; }
.session-foot { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; font-size: 13px; color: var(--ash); }
.session-foot .chip {
  font: inherit; font-weight: 500; color: var(--graphite); background: var(--white);
  border: 1px solid var(--mist); border-radius: 999px; padding: 5px 12px; cursor: pointer;
}
.session-foot .chip:hover { border-color: var(--ink); color: var(--ink); }
.session-foot .chip.primary { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.session-foot .chip.primary:hover { background: var(--graphite); }
.session-foot .fw { margin-left: auto; }
.session-foot .fw b { font-weight: 500; color: var(--graphite); }
@media (prefers-reduced-motion: reduce) {
  .t-live .caret, .answer .cursor, .answer .thinking { animation: none; }
  html { scroll-behavior: auto; }
}

/* Two ways: alternating rows */
.ways { display: flex; flex-direction: column; gap: 64px; margin-top: 48px; }
.way { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 48px; align-items: center; }
.way:nth-child(even) .way-copy { order: 2; }
@media (max-width: 860px) { .way { grid-template-columns: 1fr; gap: 24px; } .way:nth-child(even) .way-copy { order: 0; } }
.way-copy { display: flex; flex-direction: column; gap: 16px; }
.way-copy p { color: var(--graphite); max-width: 52ch; }
.way-copy ul { margin: 0; padding-left: 18px; color: var(--graphite); display: flex; flex-direction: column; gap: 6px; }
.frag {
  background: var(--white); border: 1px solid var(--chalk); border-radius: var(--r-md);
  padding: 20px 22px; box-shadow: var(--shadow-hover);
  font-size: 15px; line-height: 1.5; color: var(--graphite);
  display: flex; flex-direction: column; gap: 12px;
}
.frag .who { font-size: 12px; font-weight: 500; color: var(--pebble); letter-spacing: 0.02em; }
.frag .grade { border-top: 1px solid var(--chalk); padding-top: 12px; }
.frag .grade b { font-weight: 500; color: var(--ink); }
.frag .serif { font-family: var(--serif); font-size: 17px; color: var(--ink); }

/* Frameworks: tab strip + content */
.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin: 32px 0 20px; }
.tab {
  font: inherit; font-size: 15px; font-weight: 500; color: var(--graphite);
  background: transparent; border: 1px solid var(--mist); border-radius: 999px;
  padding: 8px 16px; cursor: pointer;
  transition: background 160ms var(--ease-out), color 160ms var(--ease-out);
}
.tab:hover { background: var(--white); }
.tab[aria-selected="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.fw-panel {
  display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: 40px;
  background: var(--white); border: 1px solid var(--chalk); border-radius: var(--r-lg);
  padding: 32px; box-shadow: var(--shadow-card);
}
@media (max-width: 860px) { .fw-panel { grid-template-columns: 1fr; gap: 24px; padding: 24px; } }
.fw-panel[hidden] { display: none; }
.fw-steps { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; }
.fw-steps li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; font-size: 15px; color: var(--graphite); line-height: 1.45; }
.fw-steps li b { font-weight: 500; color: var(--ink); }
.fw-steps li i { font-style: normal; font-family: var(--serif); color: var(--pebble); font-variant-numeric: tabular-nums; }
.fw-sample { font-family: var(--serif); font-size: 17px; line-height: 1.55; color: var(--ink); white-space: pre-wrap; }
.fw-sample small { display: block; font-family: var(--sans); font-size: 12px; color: var(--pebble); margin-bottom: 12px; }

/* Private by design */
.private { background: var(--stone); }
.private .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; align-items: start; }
@media (max-width: 860px) { .private .wrap { grid-template-columns: 1fr; gap: 32px; } }
.private dl { margin: 0; display: grid; grid-template-columns: max-content 1fr; gap: 12px 24px; font-size: 15px; }
.private dt { font-weight: 500; color: var(--ink); }
.private dd { margin: 0; color: var(--graphite); }
.providers { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.providers span { font-size: 14px; color: var(--graphite); background: var(--white); border: 1px solid var(--chalk); border-radius: 999px; padding: 5px 12px; }

/* Pricing */
.price-card {
  background: var(--white); border: 1px solid var(--chalk); border-radius: var(--r-lg);
  padding: 40px; box-shadow: var(--shadow-card);
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 40px; margin-top: 40px;
  max-width: 900px;
}
@media (max-width: 720px) { .price-card { grid-template-columns: 1fr; padding: 28px; } }
.price { font-family: var(--serif); font-size: 56px; line-height: 1; letter-spacing: -0.02em; }
.price small { font-family: var(--sans); font-size: 15px; color: var(--ash); letter-spacing: 0; margin-left: 8px; }
.price-card ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; color: var(--graphite); font-size: 15px; }
.price-card ul li { display: grid; grid-template-columns: 18px 1fr; gap: 10px; align-items: start; }
.price-card ul li svg { margin-top: 4px; }
.price-actions { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.fine { font-size: 13px; color: var(--ash); line-height: 1.5; max-width: 40ch; }

/* FAQ */
.faq { max-width: 760px; }
.faq details { border-top: 1px solid var(--chalk); }
.faq details:last-child { border-bottom: 1px solid var(--chalk); }
.faq summary {
  cursor: pointer; list-style: none; padding: 18px 0; font-size: 17px; font-weight: 500;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--serif); font-size: 22px; color: var(--pebble); transition: transform 200ms var(--ease-out); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .a { padding: 0 0 20px; color: var(--graphite); max-width: 65ch; line-height: 1.55; }

/* Footer */
footer { background: var(--obsidian); color: var(--pebble); padding: 48px 0; font-size: 14px; }
footer .wrap { display: flex; gap: 32px; flex-wrap: wrap; align-items: flex-start; }
footer .brand { color: var(--paper); }
footer nav { display: flex; gap: 20px; flex-wrap: wrap; margin-left: auto; }
footer a { color: var(--pebble); text-decoration: none; }
footer a:hover { color: var(--paper); }
footer .legal { width: 100%; margin-top: 8px; color: #6f6d68; }

/* Read pages */
.doc { max-width: 720px; padding: 64px 0 96px; }
.doc h1 { font-size: 40px; margin-bottom: 8px; }
.doc .updated { color: var(--ash); font-size: 14px; margin-bottom: 40px; }
.doc h2 { font-size: 24px; margin: 40px 0 12px; }
.doc p, .doc li { color: var(--graphite); line-height: 1.6; }
.doc p + p { margin-top: 12px; }
.doc ul { padding-left: 20px; margin: 12px 0; }