/* DentalTrackr marketing site. No build step, no external resources. */

:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --bg-soft: #effbf8;         /* soft mint wash */
  --surface: #ffffff;
  --text: #0d2b28;
  --text-muted: #46625e;
  --border: #cdeee6;
  --accent: #0a7a6e;          /* deep teal: links/small text, 5.2:1 on white */
  --accent-green: #157a46;    /* deep green: eyebrows, checks */
  --accent-strong: #0e9f94;   /* outlines, featured plan */
  --accent-bright: #14d3c5;   /* turquoise */
  --accent-mint: #2bb673;     /* green */
  --gradient: linear-gradient(120deg, #14d3c5 0%, #2bb673 100%);
  --accent-tint: #e2f8f1;
  --on-accent: #04322e;       /* dark text on the bright gradient: ≥ 5.3:1 */
  --phone: #11181a;
  --shadow: 0 1px 2px rgb(13 43 40 / 0.06), 0 12px 32px rgb(13 43 40 / 0.10);
  --radius: 18px;
  --max: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #081513;
    --bg-soft: #0c1d1a;
    --surface: #112622;
    --text: #e3f4f0;
    --text-muted: #a1bdb7;
    --border: #1f3a35;
    --accent: #5ee6d6;
    --accent-green: #6edb9a;
    --accent-strong: #3fd9c8;
    --accent-bright: #14d3c5;
    --accent-mint: #2bb673;
    --accent-tint: #10322c;
    --on-accent: #04241f;
    --phone: #000000;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.4), 0 12px 32px rgb(0 0 0 / 0.45);
  }
}

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

html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: 5rem; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
}

img, video { display: block; max-width: 100%; height: auto; }

a { color: var(--accent); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible { outline: 3px solid var(--accent-bright); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 0.6em; }
h1 { font-size: clamp(2.1rem, 5.2vw, 3.5rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.4rem); }
h3 { font-size: 1.25rem; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }

.wrap { width: min(100% - 2.5rem, var(--max)); margin-inline: auto; }

.skip-link {
  position: absolute; left: 1rem; top: -4rem; z-index: 100;
  background: var(--surface); color: var(--text); padding: 0.6rem 1rem; border-radius: 8px; box-shadow: var(--shadow);
}
.skip-link:focus { top: 1rem; }

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

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  -webkit-backdrop-filter: saturate(1.6) blur(14px);
  backdrop-filter: saturate(1.6) blur(14px);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 4rem; }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; color: var(--text); text-decoration: none; font-weight: 700; font-size: 1.15rem; letter-spacing: -0.01em; }
.brand img { width: 34px; height: 34px; border-radius: 8px; }
.site-nav ul { display: flex; gap: 0.25rem 1.25rem; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; justify-content: flex-end; }
.site-nav a { color: var(--text-muted); text-decoration: none; font-weight: 500; font-size: 0.98rem; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--accent); }
@media (max-width: 520px) {
  .site-nav .nav-optional { display: none; }
}

/* Buttons and badges */
.button {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.8rem 1.3rem; border-radius: 999px; font-weight: 600; text-decoration: none;
  background: var(--gradient); color: var(--on-accent); border: 0; font: inherit; font-weight: 650; cursor: pointer;
  box-shadow: 0 6px 18px color-mix(in srgb, var(--accent-mint) 35%, transparent);
}
.button:hover { filter: brightness(1.05) saturate(1.1); }
.button.secondary { background: transparent; color: var(--accent); box-shadow: inset 0 0 0 2px var(--border); filter: none; }
.button.secondary:hover { box-shadow: inset 0 0 0 2px var(--accent); }

.soon-badge {
  display: inline-flex; align-items: center; gap: 0.7rem;
  padding: 0.65rem 1.25rem 0.65rem 1rem; border-radius: 14px;
  background: var(--text); color: var(--bg);
}
.soon-badge svg { width: 26px; height: 26px; flex: none; }
.soon-badge span { display: flex; flex-direction: column; line-height: 1.15; }
.soon-badge small { font-size: 0.75rem; opacity: 0.8; letter-spacing: 0.02em; }
.soon-badge strong { font-size: 1.15rem; font-weight: 650; letter-spacing: -0.01em; }

/* Hero */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(60rem 32rem at 88% -12%, color-mix(in srgb, var(--accent-bright) 55%, transparent), transparent 68%),
    radial-gradient(46rem 28rem at -12% 112%, color-mix(in srgb, var(--accent-mint) 45%, transparent), transparent 68%),
    linear-gradient(160deg, color-mix(in srgb, var(--accent-bright) 12%, var(--bg-soft)), color-mix(in srgb, var(--accent-mint) 12%, var(--bg-soft)));
  border-bottom: 1px solid var(--border);
}
.hero .wrap {
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: 3rem; align-items: center;
  padding-block: clamp(2.5rem, 7vw, 5.5rem);
}
.gradient-text {
  /* Darker than the button gradient so large text stays ≥ 3:1 on the light hero. */
  background: linear-gradient(90deg, #0b9c90, #1d8a4f);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
@media (prefers-color-scheme: dark) {
  .gradient-text { background-image: linear-gradient(90deg, #5ee6d6, #6edb9a); }
}
.hero-icon { width: 88px; height: 88px; border-radius: 20px; box-shadow: var(--shadow); margin-bottom: 1.5rem; }
.hero .lede { font-size: clamp(1.1rem, 1.8vw, 1.3rem); color: var(--text-muted); max-width: 34em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.9rem 1.2rem; align-items: center; margin-top: 1.8rem; }
.hero-note { margin-top: 1.25rem; font-size: 0.95rem; color: var(--text-muted); }
.hero-media { display: flex; flex-direction: column; align-items: center; gap: 0.8rem; }
@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 2.5rem; text-align: center; }
  .hero-icon { margin-inline: auto; }
  .hero .lede { margin-inline: auto; }
  .hero-actions { justify-content: center; }
}

/* Phone frame */
.phone {
  --w: 300px;
  width: min(var(--w), 100%);
  padding: calc(var(--w) * 0.035);
  border-radius: calc(var(--w) * 0.16);
  background: var(--phone);
  box-shadow: var(--shadow), inset 0 0 0 2px rgb(255 255 255 / 0.08);
  margin: 0;
}
.phone > picture { display: block; }
.phone > img, .phone > video, .phone > picture > img {
  width: 100%; aspect-ratio: 1320 / 2868; object-fit: cover;
  border-radius: calc(var(--w) * 0.13);
  background: #e8eef0;
}
.phone-hero { --w: 290px; }
@media (max-width: 400px) { .phone, .phone-hero { --w: 260px; } }

.video-toggle {
  display: inline-flex; align-items: center; gap: 0.45rem;
  font: inherit; font-size: 0.9rem; font-weight: 500; color: var(--text-muted);
  background: var(--surface); border: 1px solid var(--border); border-radius: 999px; padding: 0.35rem 0.9rem; cursor: pointer;
}
.video-toggle:hover { color: var(--accent); border-color: var(--accent); }
.video-toggle svg { width: 14px; height: 14px; }

/* Sections */
.section { padding-block: clamp(3.5rem, 8vw, 6.5rem); }
.section.alt {
  background:
    radial-gradient(50rem 22rem at 100% 0%, color-mix(in srgb, var(--accent-bright) 10%, transparent), transparent 70%),
    radial-gradient(40rem 20rem at 0% 100%, color-mix(in srgb, var(--accent-mint) 10%, transparent), transparent 70%),
    var(--bg-soft);
  border-block: 1px solid var(--border);
}
.section-head { max-width: 44rem; margin-bottom: clamp(2rem, 5vw, 3.5rem); }
.section-head.center { text-align: center; margin-inline: auto; }
.section-head p { color: var(--text-muted); font-size: 1.12rem; }
.eyebrow { display: block; color: var(--accent-green); font-weight: 750; font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 0.6rem; }
.eyebrow::before { content: ""; display: inline-block; width: 1.6rem; height: 4px; border-radius: 2px; background: var(--gradient); vertical-align: middle; margin-right: 0.55rem; }
.section-head.center .eyebrow::before { display: none; }

.feature {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(2rem, 6vw, 5rem); align-items: center;
}
.feature + .feature { margin-top: clamp(4rem, 9vw, 7rem); }
.feature-media { display: flex; justify-content: center; align-items: flex-start; gap: 1.25rem; }
.feature.reverse .feature-media { order: -1; }
.feature-media.pair .phone { --w: 250px; }
.feature-media.pair .phone:nth-child(2) { margin-top: 3rem; }
.feature-text h3 { font-size: clamp(1.45rem, 2.6vw, 1.95rem); letter-spacing: -0.02em; }
.feature-text p { color: var(--text-muted); }
@media (max-width: 860px) {
  .feature { grid-template-columns: 1fr; }
  .feature.reverse .feature-media { order: 0; }
  .feature-text { max-width: 40rem; }
}
@media (max-width: 560px) {
  .feature-media.pair .phone { --w: 46vw; }
  .feature-media.pair .phone:nth-child(2) { margin-top: 2rem; }
  .feature-media.pair { gap: 0.75rem; }
}

.checks { list-style: none; padding: 0; margin: 1.25rem 0 0; display: grid; gap: 0.75rem; }
.checks li { position: relative; padding-left: 2rem; }
.checks li::before {
  content: ""; position: absolute; left: 0; top: 0.3em; width: 1.2rem; height: 1.2rem; border-radius: 50%;
  background: var(--gradient) center / 0.85rem no-repeat;
}
.checks li::after {
  content: ""; position: absolute; left: 0; top: 0.3em; width: 1.2rem; height: 1.2rem;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5.5 10.5l3 3 6-7' fill='none' stroke='%2304322e' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 0.85rem no-repeat;
}
.card { transition: border-color 0.2s; }
.card:hover { border-color: color-mix(in srgb, var(--accent-mint) 45%, var(--border)); }
.checks strong { color: var(--text); }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); gap: 1.25rem; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.6rem 1.5rem; box-shadow: var(--shadow);
}
.card h3 { margin-bottom: 0.4rem; }
.card p { color: var(--text-muted); margin: 0; }
.card .role-tag { display: inline-block; margin-bottom: 0.8rem; padding: 0.15rem 0.75rem; border-radius: 999px; background: var(--gradient); color: var(--on-accent); font-weight: 700; font-size: 0.85rem; }
.section-foot { margin-top: 1.5rem; color: var(--text-muted); }

/* Plans */
.plan { display: flex; flex-direction: column; gap: 0.25rem; }
.plan .offices { font-size: 2rem; font-weight: 750; letter-spacing: -0.03em; color: var(--text); line-height: 1.1; margin: 0.4rem 0 0.2rem; }
.plan .offices small { font-size: 1rem; font-weight: 500; color: var(--text-muted); letter-spacing: 0; }
.plan ul { margin: 0.9rem 0 0; padding-left: 1.1rem; color: var(--text-muted); }
.plan.featured { border: 2px solid transparent; background: linear-gradient(var(--surface), var(--surface)) padding-box, var(--gradient) border-box; }
.plans-note { max-width: 46rem; margin: 2rem auto 0; text-align: center; color: var(--text-muted); }

/* Closing call to action */
.cta { text-align: center; }
.cta .wrap { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.cta p { color: var(--text-muted); max-width: 36rem; }
.cta-band { background: var(--gradient); color: var(--on-accent); }
.cta-band h2 { color: var(--on-accent); }
.cta-band p { color: color-mix(in srgb, var(--on-accent) 85%, transparent); }
.cta-band a { color: var(--on-accent); font-weight: 650; }

/* Prose pages (privacy, terms, support) */
.page-head { background: var(--bg-soft); border-bottom: 1px solid var(--border); padding-block: clamp(2.5rem, 6vw, 4rem); }
.page-head p { color: var(--text-muted); margin: 0; }
.prose { max-width: 46rem; padding-block: clamp(2rem, 5vw, 3.5rem) clamp(3rem, 8vw, 5rem); }
.prose h2 { font-size: 1.45rem; margin-top: 2.2em; }
.prose > h2:first-child { margin-top: 0; }
.prose h3 { font-size: 1.12rem; margin-top: 1.6em; }
.prose ul, .prose ol { padding-left: 1.3rem; }
.prose li + li { margin-top: 0.35em; }
.prose table { width: 100%; border-collapse: collapse; margin: 1rem 0 1.5rem; font-size: 0.97rem; display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; vertical-align: top; padding: 0.6rem 0.75rem; border-bottom: 1px solid var(--border); }
.prose th { background: var(--bg-soft); }
.toc { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 14px; padding: 1rem 1.25rem; }
.toc h2 { font-size: 1rem; margin: 0 0 0.4rem; }
.toc ol { margin: 0; columns: 2 14rem; column-gap: 2rem; }

.faq details { border-bottom: 1px solid var(--border); padding: 0.4rem 0; }
.faq summary { cursor: pointer; font-weight: 650; padding: 0.7rem 0; list-style: none; display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; flex: none; font-size: 1.4rem; line-height: 1; font-weight: 400; color: var(--accent); }
.faq details[open] summary::after { content: "\2212"; }
.faq details > *:not(summary) { color: var(--text-muted); }
.faq details[open] summary { color: var(--accent); }
.contact-card { margin-top: 2.5rem; }
.contact-card h2 { margin-top: 0; }

.notfound { text-align: center; padding-block: clamp(4rem, 14vw, 9rem); }
.notfound img { width: 96px; height: 96px; border-radius: 22px; margin: 0 auto 1.5rem; box-shadow: var(--shadow); }
.notfound p { color: var(--text-muted); }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding-block: 2.5rem; font-size: 0.95rem; color: var(--text-muted); }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; align-items: center; }
.site-footer ul { display: flex; flex-wrap: wrap; gap: 0.5rem 1.4rem; list-style: none; margin: 0; padding: 0; }
.site-footer a { color: var(--text-muted); }
.site-footer a:hover { color: var(--accent); }
.site-footer p { margin: 0; }