/* Doctor AI Booking: sales page. Plain CSS, no build step. Colors are the app's own (see nextjs-project/src/app/globals.css). */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("fonts/inter-latin.woff2") format("woff2");
}

:root {
  --bg: #ffffff;
  --bg-alt: #f6f8fb;
  --fg: #0f172a;
  --muted: #64748b;
  --card: #ffffff;
  --border: #e2e8f0;
  --primary: #0f766e;
  --primary-hover: #115e59;
  --primary-fg: #ffffff;
  --primary-soft: #ccfbf1;
  --ring: #14b8a6;
  --hero-glow: #ccfbf1;
  --shadow: 0 1px 2px rgb(15 23 42 / 6%), 0 12px 32px -12px rgb(15 23 42 / 18%);
  --radius: 16px;
  --header-h: 68px;
  color-scheme: light;
}

/* Dark: the visitor's system setting, unless they picked light with the toggle (and the reverse). */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1120;
    --bg-alt: #0f172a;
    --fg: #e2e8f0;
    --muted: #94a3b8;
    --card: #111827;
    --border: #1f2a3c;
    --primary: #2dd4bf;
    --primary-hover: #5eead4;
    --primary-fg: #042f2e;
    --primary-soft: #134e4a;
    --ring: #2dd4bf;
    --hero-glow: #134e4a;
    --shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 16px 40px -16px rgb(0 0 0 / 60%);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0b1120;
  --bg-alt: #0f172a;
  --fg: #e2e8f0;
  --muted: #94a3b8;
  --card: #111827;
  --border: #1f2a3c;
  --primary: #2dd4bf;
  --primary-hover: #5eead4;
  --primary-fg: #042f2e;
  --primary-soft: #134e4a;
  --ring: #2dd4bf;
  --hero-glow: #134e4a;
  --shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 16px 40px -16px rgb(0 0 0 / 60%);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); }
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0; }
p { margin: 0; }
code { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: 0.9em; background: var(--bg-alt); border: 1px solid var(--border); border-radius: 6px; padding: 1px 6px; overflow-wrap: anywhere; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
:focus-visible { outline: 3px solid var(--ring); outline-offset: 2px; border-radius: 6px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--primary); color: var(--primary-fg); padding: 8px 14px; border-radius: 8px; }
.skip:focus { top: 12px; }

.wrap { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 820px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-weight: 600; text-decoration: none; border-radius: 12px; border: 1px solid transparent;
  padding: 10px 18px; cursor: pointer; transition: background-color .15s, transform .15s, box-shadow .15s;
}
.btn-sm { padding: 8px 14px; font-size: 15px; border-radius: 10px; }
.btn-lg { padding: 14px 24px; font-size: 17px; }
.btn-primary { background: var(--primary); color: var(--primary-fg); box-shadow: 0 8px 20px -10px var(--primary); }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); }
.btn-outline { background: var(--card); color: var(--fg); border-color: var(--border); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: #fff; border-color: rgb(255 255 255 / 45%); }
.btn-ghost:hover { background: rgb(255 255 255 / 10%); transform: translateY(-1px); }
.buy-hero { margin-top: 16px; }
.btn-light { background: #fff; color: #0f766e; }
.btn-light:hover { background: #f0fdfa; transform: translateY(-1px); }
.buy {
  display: inline-flex; align-items: center; gap: 10px; text-decoration: none;
  background: #fff; color: #334155; border: 1px solid #e2e8f0; border-radius: 12px; padding: 10px 18px;
  font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em;
  box-shadow: var(--shadow); transition: transform .15s;
}
.buy:hover { transform: translateY(-1px); }
.buy img { width: 104px; height: auto; }
.icon-btn {
  display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--card); color: var(--fg); cursor: pointer;
}
.icon-btn:hover { border-color: var(--primary); color: var(--primary); }

/* Header */
.top {
  position: sticky; top: 0; z-index: 50; height: var(--header-h);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid transparent; transition: border-color .2s;
}
.top.scrolled { border-bottom-color: var(--border); }
.top-row { height: 100%; display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--fg); font-weight: 700; font-size: 18px; white-space: nowrap; }
.brand img { border-radius: 8px; }
.nav { display: flex; gap: 28px; margin-left: auto; }
.nav a { color: var(--muted); text-decoration: none; font-weight: 500; font-size: 15px; }
.nav a:hover { color: var(--fg); }
.top-actions { display: flex; align-items: center; gap: 10px; }
.menu-btn { display: none; }
.moon { display: none; }
:root[data-theme="dark"] .sun { display: none; }
:root[data-theme="dark"] .moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .sun { display: none; }
  :root:not([data-theme="light"]) .moon { display: block; }
}

/* Hero */
.hero {
  position: relative; padding: 72px 0 88px; overflow: hidden;
  background:
    radial-gradient(60% 70% at 85% 10%, var(--hero-glow) 0%, transparent 70%),
    radial-gradient(40% 50% at 0% 100%, color-mix(in srgb, var(--hero-glow) 60%, transparent) 0%, transparent 70%),
    var(--bg);
}
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 56px; align-items: center; }
.pill {
  display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: var(--primary);
  background: var(--card); border: 1px solid var(--border); border-radius: 999px; padding: 6px 14px; margin-bottom: 22px;
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ring); box-shadow: 0 0 0 4px color-mix(in srgb, var(--ring) 25%, transparent); }
h1 { font-size: clamp(34px, 4.4vw, 50px); font-weight: 800; }
.accent { color: var(--primary); }
.lead { margin-top: 20px; font-size: 19px; color: var(--muted); max-width: 560px; }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 32px; }
.cta-row.center { justify-content: center; }
.ticks { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-wrap: wrap; gap: 8px 22px; color: var(--muted); font-size: 15px; }
.ticks li { display: flex; align-items: center; gap: 8px; }
.ticks li::before { content: ""; width: 16px; height: 16px; flex-shrink: 0; border-radius: 50%; background: var(--primary-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230f766e' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12l4 4 8-8'/%3E%3C/svg%3E") center / 11px no-repeat; }
.hero-shot { position: relative; }
.float-card {
  position: absolute; left: -28px; bottom: -26px; display: flex; align-items: center; gap: 12px;
  background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 12px 16px; box-shadow: var(--shadow);
}
.float-card strong { display: block; font-size: 15px; }
.float-card small { color: var(--muted); font-size: 13px; }
.float-icon { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; background: var(--primary-soft); color: var(--primary); }

/* Browser frame around screenshots */
.frame { margin: 0; border-radius: var(--radius); overflow: hidden; background: var(--card); border: 1px solid var(--border); box-shadow: var(--shadow); }
.frame-bar { height: 30px; display: flex; align-items: center; gap: 6px; padding: 0 14px; background: var(--bg-alt); border-bottom: 1px solid var(--border); }
.frame-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.frame-bar i:nth-child(1) { background: #f87171; }
.frame-bar i:nth-child(2) { background: #fbbf24; }
.frame-bar i:nth-child(3) { background: #34d399; }

/* Numbers */
.numbers { border-block: 1px solid var(--border); background: var(--bg-alt); }
.numbers-row { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; padding-block: 28px; text-align: center; }
.numbers strong { display: block; font-size: 34px; font-weight: 800; color: var(--primary); line-height: 1.1; }
.numbers span { color: var(--muted); font-size: 14px; }

/* Sections */
.section { padding: 96px 0; }
.section.alt { background: var(--bg-alt); }
.head { text-align: center; max-width: 760px; margin: 0 auto 48px; }
.eyebrow { color: var(--primary); font-weight: 700; font-size: 13px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 10px; }
h2 { font-size: clamp(28px, 3.6vw, 40px); font-weight: 800; }
.head p:not(.eyebrow) { margin-top: 14px; color: var(--muted); font-size: 18px; }
.note { margin-top: 16px; color: var(--muted); font-size: 14px; }

.steps { list-style: none; padding: 0; margin: 0 0 56px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; counter-reset: s; }
.steps li { position: relative; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.steps .num { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; background: var(--primary); color: var(--primary-fg); font-weight: 800; margin-bottom: 14px; }
.steps h3 { font-size: 18px; margin-bottom: 6px; }
.steps p { color: var(--muted); font-size: 15px; }

.split { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 48px; align-items: center; }
.split-rev { grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr); }
.split-title { font-size: 24px; margin-bottom: 18px; }
.split-h2 { margin-bottom: 20px; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.checks li { position: relative; padding-left: 32px; color: var(--muted); }
.checks li strong { color: var(--fg); }
.checks li::before { content: ""; position: absolute; left: 0; top: 3px; width: 20px; height: 20px; border-radius: 6px; background: var(--primary-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230f766e' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12l4 4 8-8'/%3E%3C/svg%3E") center / 13px no-repeat; }

.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; transition: transform .2s, box-shadow .2s; }
.cards .card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 15px; }
.ico { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px; background: var(--primary-soft); color: var(--primary); margin-bottom: 16px; }

.roles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.roles article { border-top: 3px solid var(--primary); background: var(--card); border-radius: 0 0 var(--radius) var(--radius); padding: 22px; box-shadow: var(--shadow); }
.roles h3 { font-size: 18px; margin-bottom: 8px; }
.roles p { color: var(--muted); font-size: 15px; }

.trio { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.trio figure { margin: 0; }
.trio img { border-radius: 12px; border: 1px solid var(--border); box-shadow: var(--shadow); }
.trio figcaption { text-align: center; margin-top: 12px; color: var(--muted); font-size: 14px; font-weight: 500; }

.tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-bottom: 28px; }
.tabs button { font: inherit; font-weight: 600; font-size: 15px; padding: 8px 16px; border-radius: 999px; border: 1px solid var(--border); background: var(--card); color: var(--muted); cursor: pointer; }
.tabs button:hover { color: var(--fg); }
.tabs button[aria-selected="true"] { background: var(--primary); border-color: var(--primary); color: var(--primary-fg); }
.panels { max-width: 1040px; margin: 0 auto; }
.zoom { display: block; cursor: zoom-in; }

.tech { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.tech .card p { margin-top: 14px; }
.chips { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips li { font-size: 14px; font-weight: 600; padding: 4px 12px; border-radius: 999px; background: var(--primary-soft); color: var(--primary); }
.plain { margin: 0; padding-left: 20px; color: var(--muted); font-size: 15px; display: grid; gap: 6px; }
.plain strong { color: var(--fg); }

.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 14px 18px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); background: var(--bg-alt); }
tr:last-child td { border-bottom: 0; }
#demo .btn { margin-top: 24px; }
#demo .split-h2 + p { color: var(--muted); }
@media (min-width: 1025px) { #demo .split { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }

.faq { display: grid; gap: 12px; }
.faq details { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 0 22px; }
.faq summary { cursor: pointer; list-style: none; padding: 18px 28px 18px 0; font-weight: 600; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%); font-size: 22px; font-weight: 400; color: var(--primary); }
.faq details[open] summary::after { content: "−"; }
.faq details p { padding-bottom: 20px; color: var(--muted); }

.final { padding: 0 0 96px; }
.final-box {
  max-width: 1152px; text-align: center; color: #fff; border-radius: 24px; padding: 64px 32px;
  background: radial-gradient(circle at 85% 15%, #2dd4bf55 0, transparent 45%), linear-gradient(135deg, #0f766e 0%, #115e59 45%, #0f172a 100%);
}
.final-box h2 { color: #fff; }
.final-box p { margin: 14px auto 0; max-width: 560px; color: #ccfbf1; font-size: 18px; }

.foot { border-top: 1px solid var(--border); padding: 28px 0; color: var(--muted); font-size: 14px; }
.foot-row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 20px; margin-left: auto; }
.foot nav a { color: var(--muted); text-decoration: none; }
.foot nav a:hover { color: var(--fg); }
.foot .brand { font-size: 16px; }

.lightbox { position: fixed; inset: 0; z-index: 90; display: grid; place-items: center; padding: 56px 16px 16px; background: rgb(2 6 23 / 88%); }
.lightbox[hidden] { display: none; }
.lightbox img { max-height: 100%; width: auto; border-radius: 10px; }
.lightbox-close { position: absolute; top: 12px; right: 12px; }

/* Tablet */
@media (max-width: 1024px) {
  .hero-grid, .split, .split-rev { grid-template-columns: minmax(0, 1fr); }
  .hero { padding-top: 48px; }
  .split-rev figure { order: 2; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cards, .tech { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .roles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .numbers-row { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .float-card { left: 12px; }
}

/* Header menu button below 900px (the links no longer fit in one row) */
@media (max-width: 900px) {
  .menu-btn { display: inline-grid; }
  .nav {
    display: none; position: absolute; top: var(--header-h); left: 0; right: 0; flex-direction: column; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--border); padding: 8px 16px 16px; box-shadow: var(--shadow);
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 4px; font-size: 17px; border-bottom: 1px solid var(--border); }
  .nav a:last-child { border-bottom: 0; }
  .top-row { gap: 12px; }
  .top-actions { margin-left: auto; gap: 8px; }
}

/* Phone */
@media (max-width: 760px) {
  .wrap { padding: 0 16px; }
  .brand { font-size: 16px; }
  .top .demo-link { padding: 8px 12px; font-size: 14px; }
  .section { padding: 64px 0; }
  .lead { font-size: 17px; }
  .steps, .cards, .tech, .roles, .trio { grid-template-columns: minmax(0, 1fr); }
  .numbers-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .numbers-row div:last-child { grid-column: 1 / -1; }
  .float-card { position: static; margin-top: 16px; }
  .final-box { padding: 48px 20px; border-radius: 18px; }
  .foot nav { margin-left: 0; }
  th, td { padding: 12px 14px; }
}
@media (max-width: 400px) {
  .brand span { display: none; }
  .cta-row > * { width: 100%; justify-content: center; }
}

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