/* MarkGen stylesheet (Vivid premium). Colours and fonts are set once here in :root */
:root {
  --ink: #1B1036;
  --ink-line: #3A2F5C;
  --lavender: #F3EFFF;
  --violet: #5B2EFF;
  --violet-dark: #4320D9;
  --violet-soft: #E6DEFF;
  --coral: #FF5D73;
  --mint: #22C7A9;
  --sun: #FFC53D;
  --white: #FFFFFF;
  --line: #DCD6EC;
  --muted: #4A4166;
  --muted-2: #5A5178;
  --on-ink-muted: #CFC8E6;
  --danger: #B42318;
  --danger-bg: #FDECEA;

  --display: 'Newsreader', Georgia, 'Times New Roman', serif;
  --body: 'Hanken Grotesk', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --radius-lg: 24px;
  --radius: 16px;
  --radius-sm: 12px;
  --wrap: 1200px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--white); color: var(--ink);
  font-family: var(--body); font-size: 17px; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: var(--violet); }
a:hover { color: var(--violet-dark); }
button { font-family: inherit; }
:focus-visible { outline: 3px solid var(--violet); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { font-family: var(--display); font-weight: 400; line-height: 1.08; letter-spacing: -0.015em; margin: 0; }

.wrap { width: min(var(--wrap), 100% - 48px); margin-inline: auto; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 12px; top: -60px; background: var(--ink); color: #fff; padding: 10px 14px; border-radius: 8px; z-index: 100; }
.skip-link:focus { top: 12px; color: #fff; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 22px; border-radius: var(--radius-sm); border: 2px solid transparent;
  font: 700 15px/1 var(--body); text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: background-color .15s, border-color .15s, color .15s;
}
.btn-primary { background: var(--violet); color: #fff; }
.btn-primary:hover { background: var(--violet-dark); color: #fff; }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: #2C1F52; color: #fff; }
.btn-sun { background: var(--sun); color: var(--ink); }
.btn-sun:hover { background: #F2B41F; color: var(--ink); }
.btn-outline { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-outline:hover { background: var(--ink); color: #fff; }
.btn-outline-light { border-color: #fff; color: #fff; background: transparent; }
.btn-outline-light:hover { background: #fff; color: var(--ink); }
.btn-text { color: var(--ink); background: transparent; padding-inline: 10px; }
.btn-text:hover { color: var(--violet); }
.btn-lg { padding: 17px 26px; font-size: 16px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(243, 239, 255, .94); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid rgba(27, 16, 54, .06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 76px; }
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font: 500 29px/1 var(--display); }
.logo:hover { color: var(--ink); }
.logo-dot { width: 14px; height: 14px; border-radius: 50%; background: var(--violet); flex: none; }
.nav-links { display: flex; gap: 36px; }
.nav-links a { text-decoration: none; font-size: 15px; font-weight: 500; color: #3F355C; }
.nav-links a:hover { color: var(--violet); }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.label-short { display: none; }
@media (max-width: 900px) { .nav-links { display: none; } }
@media (max-width: 520px) {
  .hide-sm { display: none !important; }
  .label-long { display: none; }
  .label-short { display: inline; }
  .usage { font-size: 13px; }
}

/* ---------- Hero ---------- */
.hero { background: var(--lavender); padding: clamp(56px, 8vw, 104px) 0 clamp(64px, 9vw, 120px); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: clamp(40px, 6vw, 88px); align-items: center; }
.hero h1 { font-size: clamp(44px, 6.2vw, 84px); line-height: 1.04; letter-spacing: -0.02em; max-width: 16ch; text-wrap: balance; }
.hero-lede { margin: 26px 0 0; font-size: clamp(17px, 1.6vw, 19px); line-height: 1.65; color: var(--muted); max-width: 56ch; }
.brief {
  margin-top: 40px; max-width: 660px; display: flex; gap: 10px; padding: 8px;
  background: #fff; border: 2px solid var(--ink); border-radius: var(--radius); transition: border-color .15s;
}
.brief:focus-within { border-color: var(--violet); }
.brief input {
  flex: 1; min-width: 0; height: 56px; padding: 0 14px; border: 0; outline: 0; background: transparent;
  font: 400 17px/1.4 var(--body); color: var(--ink);
}
.brief input::placeholder { color: #8078A0; }
.brief .btn { height: 56px; padding-inline: 26px; font-size: 16px; }
.perks { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.perk { padding: 7px 13px; border-radius: 999px; font-size: 13px; font-weight: 700; color: var(--ink); }
.perk-sun { background: var(--sun); }
.perk-mint { background: var(--mint); }
.perk-coral { background: var(--coral); }

.ask-panel { background: var(--ink); color: #fff; border-radius: var(--radius-lg); padding: 34px 36px; }
.ask-panel h2 { font: 700 14px/1.3 var(--body); letter-spacing: 0; color: var(--sun); }
.ask-list { list-style: none; margin: 10px 0 0; padding: 0; }
.ask-item {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 18px 0; border: 0; border-bottom: 1px solid var(--ink-line); background: transparent;
  text-align: left; font: 400 17px/1.4 var(--body); color: #fff; cursor: pointer;
}
.ask-item svg { flex: none; transition: transform .15s; }
.ask-item:hover { color: var(--sun); }
.ask-item:hover svg { transform: translateX(3px); }
.ask-list li:last-child .ask-item { border-bottom: 0; }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .brief { flex-direction: column; }
  .brief .btn { width: 100%; }
  .ask-panel { padding: 26px 24px; }
}

/* ---------- Section layout ---------- */
.section { padding: clamp(72px, 9vw, 112px) 0; }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: clamp(28px, 5vw, 64px); }
.split h2, .section-title { font-size: clamp(38px, 4.4vw, 56px); line-height: 1.1; }
.split > p { margin: 0; font-size: 18px; line-height: 1.65; color: var(--muted); max-width: 60ch; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }

/* ---------- Services accordion ---------- */
.services-intro { margin-bottom: 48px; }
.svc-list { border-top: 2px solid var(--ink); }
.svc { border-bottom: 1px solid var(--line); }
.svc summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 24px; padding: 26px 0;
}
.svc summary::-webkit-details-marker { display: none; }
.svc-count {
  width: 52px; height: 52px; flex: none; border-radius: 50%;
  background: var(--c); color: var(--c-fg);
  display: flex; align-items: center; justify-content: center; font-size: 17px; font-weight: 700;
}
.svc-text { flex: 1; min-width: 0; }
.svc-name { display: block; font: 400 clamp(24px, 2.6vw, 32px)/1.15 var(--display); transition: color .15s; }
.svc-summary { display: block; margin-top: 4px; font-size: 16px; color: var(--muted-2); }
.svc-toggle {
  width: 44px; height: 44px; flex: none; border-radius: 50%; border: 2px solid var(--ink);
  display: flex; align-items: center; justify-content: center; font-size: 24px; font-weight: 500; line-height: 1;
  transition: background-color .15s, color .15s;
}
.svc-toggle::before { content: '+'; }
.svc[open] .svc-toggle { background: var(--ink); color: #fff; }
.svc[open] .svc-toggle::before { content: '\2212'; }
.svc summary:hover .svc-name { color: var(--violet); }
.svc-body { margin: 0 0 32px; padding: 32px 36px; border-radius: 20px; background: var(--tint); }
.svc-note { margin: 0 0 24px; font-size: 15px; font-weight: 600; }
.svc-group + .svc-group { margin-top: 28px; }
.svc-group h3 { font: 700 14px/1.3 var(--body); letter-spacing: 0; margin: 0 0 6px; }
.svc-items { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); column-gap: 28px; }
.svc-item { padding: 14px 0; border-top: 1px solid var(--line-c); }
.svc-item h4 { margin: 0; font-size: 15px; font-weight: 700; line-height: 1.35; }
.svc-item p { margin: 4px 0 0; font-size: 14px; line-height: 1.5; color: var(--muted); }
.tag { display: inline-block; margin-top: 8px; padding: 4px 9px; border-radius: 999px; background: var(--ink); color: #fff; font-size: 12px; font-weight: 600; }
@media (max-width: 1080px) { .svc-items { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 820px) { .svc-items { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) {
  .svc-items { grid-template-columns: 1fr; }
  .svc summary { gap: 14px; }
  .svc-count { width: 42px; height: 42px; font-size: 15px; }
  .svc-summary { display: none; }
  .svc-body { padding: 22px 20px; }
}

/* ---------- Industries (dark) ---------- */
.section-dark { background: var(--ink); color: #fff; }
.industry-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.industry { padding: 26px 28px; border-radius: 20px; color: var(--ink); }
.industry h3 { font: 700 20px/1.3 var(--body); letter-spacing: 0; }
.industry p { margin: 6px 0 0; font-size: 15px; line-height: 1.55; }
.industry-violet { background: var(--violet); color: #fff; }
.industry-coral { background: var(--coral); }
.industry-mint { background: var(--mint); }
.industry-sun { background: var(--sun); }
@media (max-width: 640px) { .industry-grid { grid-template-columns: 1fr; } }

/* ---------- Steps ---------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; }
.step-num { width: 56px; height: 56px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font: 400 28px/1 var(--display); color: var(--ink); }
.step h3 { margin-top: 18px; font: 700 20px/1.3 var(--body); letter-spacing: 0; }
.step p { margin: 8px 0 0; font-size: 15px; line-height: 1.6; color: var(--muted); }
.steps-cta { margin-top: 40px; }
@media (max-width: 760px) { .steps { grid-template-columns: 1fr; gap: 28px; } }

/* ---------- Principles ---------- */
.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; }
.principle h3 { font: 700 20px/1.3 var(--body); letter-spacing: 0; }
.principle p { margin: 8px 0 0; font-size: 15px; line-height: 1.6; color: var(--muted); }
@media (max-width: 760px) { .principles { grid-template-columns: 1fr; gap: 24px; } }
.section-lavender { background: var(--lavender); }

/* ---------- Contact ---------- */
.contact {
  display: flex; justify-content: space-between; align-items: center; gap: 40px; flex-wrap: wrap;
  padding: clamp(36px, 6vw, 72px); border-radius: 28px; background: var(--violet); color: #fff;
}
.contact h2 { font-size: clamp(38px, 4.6vw, 60px); line-height: 1.05; }
.contact p { margin: 14px 0 0; font-size: 18px; color: var(--violet-soft); }
.contact-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.contact-section { padding: 0 0 clamp(64px, 8vw, 96px); }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: var(--on-ink-muted); font-size: 14px; padding: 36px 0; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 16px 32px; justify-content: space-between; align-items: center; }
.footer-links { display: flex; flex-wrap: wrap; gap: 20px; }
.footer-links a { color: var(--on-ink-muted); text-decoration: none; }
.footer-links a:hover { color: #fff; text-decoration: underline; }

/* ---------- Sign in / create account ---------- */
.auth-page { min-height: 100vh; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.auth-main { display: flex; flex-direction: column; padding: 24px clamp(20px, 5vw, 64px); background: #fff; }
.auth-form-wrap { width: 100%; max-width: 420px; margin: auto 0; padding: 48px 0; }
.auth-form-wrap h1 { font-size: clamp(40px, 4.6vw, 58px); letter-spacing: -0.02em; }
.auth-sub { margin: 12px 0 32px; color: var(--muted); }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.field label { font-size: 14px; font-weight: 600; }
.field input { font: 400 16px/1.4 var(--body); color: var(--ink); background: #fff; padding: 13px 14px; border: 1.5px solid #CFC7E4; border-radius: var(--radius-sm); }
.field input:focus { outline: none; border-color: var(--violet); box-shadow: 0 0 0 3px var(--violet-soft); }
.field-hint { font-size: 13px; color: var(--muted); }
.form-error { margin: 0 0 18px; padding: 12px 14px; border-radius: var(--radius-sm); background: var(--danger-bg); color: var(--danger); font-size: 14px; }
.auth-submit { width: 100%; margin-top: 6px; }
.auth-legal { margin: 14px 0 0; font-size: 13px; color: var(--muted); }
.auth-switch { margin: 24px 0 0; font-size: 15px; color: var(--muted); }
.link-button { background: none; border: 0; padding: 0; font: inherit; font-weight: 700; color: var(--violet); cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
.auth-aside { background: var(--ink); color: #fff; padding: clamp(32px, 5vw, 72px); display: flex; flex-direction: column; justify-content: center; }
.auth-aside h2 { font-size: clamp(34px, 3.6vw, 48px); max-width: 14ch; }
.auth-aside p { color: var(--on-ink-muted); margin: 16px 0 0; max-width: 44ch; }
.example-briefs { list-style: none; margin: 32px 0 0; padding: 0; display: grid; gap: 12px; max-width: 460px; }
.example-briefs li { padding: 16px 20px; border-radius: var(--radius); color: var(--ink); font-size: 15px; font-weight: 500; }
.example-briefs li:nth-child(4n+1) { background: var(--sun); }
.example-briefs li:nth-child(4n+2) { background: var(--mint); }
.example-briefs li:nth-child(4n+3) { background: var(--coral); }
.example-briefs li:nth-child(4n+4) { background: var(--violet-soft); }
@media (max-width: 900px) { .auth-page { grid-template-columns: 1fr; } .auth-aside { display: none; } }

/* ---------- Assistant app ---------- */
.app { height: 100vh; height: 100dvh; display: flex; flex-direction: column; background: #fff; }
.app .site-header { position: static; }
.usage { font-size: 14px; color: var(--muted); margin-right: 6px; white-space: nowrap; }
.chat-scroll { flex: 1; overflow-y: auto; }
.chat { width: min(840px, 100% - 32px); margin: 0 auto; padding: 40px 0 28px; display: flex; flex-direction: column; gap: 22px; }
.loading-state { color: var(--muted); padding: 40px 0; }

.empty h1 { font-size: clamp(40px, 5.4vw, 64px); letter-spacing: -0.02em; max-width: 14ch; }
.empty p { color: var(--muted); margin: 14px 0 0; max-width: 56ch; }
.starter-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 30px; }
.starter {
  text-align: left; cursor: pointer; color: var(--ink); background: #fff;
  border: 1.5px solid var(--line); border-radius: var(--radius); padding: 16px 18px; font: 500 15px/1.45 var(--body);
  transition: border-color .15s, background-color .15s;
}
.starter:hover { border-color: var(--violet); background: var(--lavender); }
@media (max-width: 600px) { .starter-grid { grid-template-columns: 1fr; } }

.msg-user { align-self: flex-end; max-width: 80%; background: var(--violet); color: #fff; padding: 12px 18px; border-radius: 18px 18px 4px 18px; white-space: pre-wrap; overflow-wrap: anywhere; }
.msg-ai { align-self: stretch; background: #fff; border: 1.5px solid var(--line); border-radius: 4px 20px 20px 20px; padding: 22px 26px; }
.msg-actions { display: flex; gap: 8px; margin-top: 14px; }
.small-btn { background: none; border: 1.5px solid var(--line); border-radius: 999px; padding: 6px 12px; font: 600 13px/1 var(--body); color: var(--muted); cursor: pointer; }
.small-btn:hover { border-color: var(--violet); color: var(--violet); }
.msg-error { align-self: stretch; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; background: var(--danger-bg); color: var(--danger); border-radius: var(--radius); padding: 14px 18px; font-size: 15px; }
.msg-error .small-btn { border-color: currentColor; color: var(--danger); }

.typing { align-self: flex-start; display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 15px; }
.dots { display: inline-flex; gap: 4px; }
.dots i { width: 7px; height: 7px; border-radius: 50%; animation: blink 1.2s infinite ease-in-out; }
.dots i:nth-child(1) { background: var(--violet); }
.dots i:nth-child(2) { background: var(--coral); animation-delay: .15s; }
.dots i:nth-child(3) { background: var(--mint); animation-delay: .3s; }
@keyframes blink { 0%, 80%, 100% { opacity: .25; } 40% { opacity: 1; } }

.md { overflow-wrap: anywhere; }
.md > :first-child { margin-top: 0; }
.md > :last-child { margin-bottom: 0; }
.md p { margin: 0 0 12px; }
.md h2, .md h3, .md h4 { font: 700 18px/1.3 var(--body); letter-spacing: 0; margin: 20px 0 8px; }
.md ul, .md ol { margin: 0 0 12px; padding-left: 22px; }
.md li { margin-bottom: 4px; }
.md code { background: var(--lavender); padding: 1px 5px; border-radius: 4px; font-size: .92em; }
.md pre { background: var(--ink); color: #fff; padding: 14px 16px; border-radius: var(--radius-sm); overflow-x: auto; }
.md pre code { background: none; padding: 0; }
.md hr { border: 0; border-top: 1px solid var(--line); margin: 18px 0; }
.md blockquote { margin: 0 0 12px; padding: 14px 18px; border-radius: var(--radius-sm); background: var(--lavender); color: var(--ink); }

.composer-bar { border-top: 1px solid var(--line); background: #fff; padding: 14px 0 16px; }
.composer { width: min(840px, 100% - 32px); margin: 0 auto; display: flex; align-items: flex-end; gap: 10px; background: #fff; border: 2px solid var(--ink); border-radius: var(--radius); padding: 8px 8px 8px 18px; transition: border-color .15s; }
.composer:focus-within { border-color: var(--violet); }
.composer textarea { flex: 1; min-width: 0; resize: none; border: 0; outline: 0; background: transparent; color: var(--ink); font: 400 16px/1.5 var(--body); padding: 8px 0; max-height: 200px; }
.composer-hint { width: min(840px, 100% - 32px); margin: 8px auto 0; font-size: 12.5px; color: var(--muted); }

/* ---------- Privacy page ---------- */
.legal-hero { background: var(--lavender); padding: clamp(48px, 7vw, 88px) 0 clamp(40px, 5vw, 64px); }
.legal-hero h1 { font-size: clamp(40px, 5vw, 64px); letter-spacing: -0.02em; }
.legal-hero p { margin: 14px 0 0; color: var(--muted); }
.legal { max-width: 760px; padding: clamp(48px, 6vw, 72px) 0 clamp(64px, 8vw, 96px); }
.legal h2 { font-size: clamp(26px, 2.8vw, 32px); margin: 44px 0 12px; }
.legal h2:first-child { margin-top: 0; }
.legal p, .legal li { color: #2E2548; }
.legal ul { padding-left: 22px; }
.legal li { margin-bottom: 8px; }
.legal-summary { margin: 0 0 8px; padding: 22px 26px; border-radius: var(--radius); background: #FFF6DC; }
.legal-summary p { margin: 0; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}