/* Northclerk marketing site. No external resources. System fonts only. */

:root {
  --bg: #ffffff;
  --bg-alt: #f3f6f8;
  --surface: #ffffff;
  --ink: #0e1c2f;
  --muted: #4d5b6c;
  --line: #d6dee6;
  --line-strong: #aab7c4;
  --field-line: #6b7b8c;
  --accent: #0f766e;
  --accent-ink: #ffffff;
  --accent-text: #0c635b;
  --accent-soft: #e4f3f1;
  --error: #b42318;
  --shadow: 0 1px 2px rgba(14, 28, 47, 0.06), 0 8px 24px rgba(14, 28, 47, 0.06);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius: 12px;
  --header-h: 68px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c1520;
    --bg-alt: #101c2a;
    --surface: #142234;
    --ink: #e8eef4;
    --muted: #a9b7c6;
    --line: #26384c;
    --line-strong: #46607a;
    --field-line: #6a859f;
    --accent: #5fd1c3;
    --accent-ink: #04201d;
    --accent-text: #6fddd0;
    --accent-soft: #123432;
    --error: #ff9d92;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.3);
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 8px);
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.0625rem; /* 17px */
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img, svg, iframe { max-width: 100%; }
main { flex: 1 0 auto; }

h1, h2, h3 { line-height: 1.2; margin: 0 0 0.6em; letter-spacing: -0.01em; text-wrap: balance; }
h1 { font-size: clamp(2.05rem, 6vw, 3.4rem); letter-spacing: -0.02em; line-height: 1.1; }
h2 { font-size: clamp(1.6rem, 4vw, 2.2rem); margin-bottom: 1rem; }
h3 { font-size: 1.15rem; margin-bottom: 0.4em; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

a { color: var(--accent-text); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

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

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

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 100;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 12px 16px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
}
.skip-link:focus { top: 8px; }

.container {
  width: min(100% - 32px, 1080px);
  margin-inline: auto;
}
.container.narrow { max-width: 760px; }

/* ---------- Header / nav ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 4px 16px;
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  color: var(--accent);
  text-decoration: none;
}
.brand-name {
  color: var(--ink);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.site-nav ul {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav a:not(.btn) {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  color: var(--ink);
  font-weight: 500;
  text-decoration: none;
  border-radius: 8px;
}
.site-nav a:not(.btn):hover { color: var(--accent-text); background: var(--bg-alt); }

.nav-toggle { display: none; }

@media (max-width: 820px) {
  /* Without JS the links simply wrap under the brand. With JS they collapse behind a button. */
  .site-nav { width: 100%; }
  .site-nav ul { margin-bottom: 8px; }

  .js .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
    min-width: 44px;
    padding: 0 14px;
    font: inherit;
    font-weight: 600;
    color: var(--ink);
    background: transparent;
    border: 1px solid var(--field-line);
    border-radius: 10px;
    cursor: pointer;
  }
  .js .nav-toggle:hover { background: var(--bg-alt); }

  .js .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    padding: 8px 16px 16px;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
  }
  .js .site-nav.is-open { display: block; }
  .js .site-nav ul { flex-direction: column; align-items: stretch; gap: 2px; margin: 0; }
  .js .site-nav a:not(.btn) { min-height: 48px; padding: 0 12px; width: 100%; }
  .js .site-nav .btn { width: 100%; margin-top: 8px; }
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 1.4rem;
  font: inherit;
  font-weight: 600;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: 10px;
  cursor: pointer;
}
.btn-small { min-height: 44px; padding: 0 1.1rem; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--field-line); }
.btn-secondary:hover { border-color: var(--ink); }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 1.75rem;
}

/* ---------- Sections ---------- */

.section { padding-block: clamp(3rem, 7vw, 5.25rem); }
.section-alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.section h2 { max-width: 34ch; }
.section .container > h2 + * { margin-top: 1.75rem; }

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent-text);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero { padding-block: clamp(3rem, 8vw, 6rem) clamp(2.75rem, 6vw, 4.5rem); }
.hero h1 { max-width: 20ch; }
.lead {
  max-width: 62ch;
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: clamp(1.1rem, 2.4vw, 1.3rem);
  line-height: 1.55;
}
.trust-line {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 1.75rem;
  color: var(--ink);
  font-weight: 500;
}
.trust-line svg { flex: none; margin-top: 3px; color: var(--accent-text); }

.page { padding-block: clamp(3rem, 8vw, 5rem); }
.page h1 { font-size: clamp(2rem, 5vw, 2.75rem); margin-bottom: 1.25rem; }

/* ---------- Grids and cards ---------- */

.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
  padding: 0;
  margin: 0;
  list-style: none;
}
.grid > * { min-width: 0; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.card p { color: var(--muted); }

.problem-card { border-top: 3px solid var(--accent); }
.problem-card h3 { font-size: 1.2rem; }

.steps { counter-reset: step; }
.step { counter-increment: step; }
.step::before {
  content: counter(step);
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  margin-bottom: 1rem;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  border-radius: 50%;
}

.features { gap: 28px 24px; }
.feature { padding: 0.25rem 0; }
.feature p { color: var(--muted); }
.icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 0.9rem;
  color: var(--accent-text);
  background: var(--accent-soft);
  border-radius: 12px;
}

/* ---------- Demo ---------- */

.demo-layout {
  display: grid;
  gap: 28px 48px;
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}
@media (min-width: 900px) {
  .demo-layout { grid-template-columns: minmax(0, 1fr) minmax(0, 420px); }
  .demo-copy { padding-top: 0.5rem; }
}
.demo-copy p { color: var(--muted); max-width: 52ch; }
.demo-widget { min-width: 0; }

.demo-frame {
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.demo-frame iframe {
  display: block;
  width: 420px;
  max-width: 100%;
  height: 620px;
  border: 0;
  background: var(--surface);
}
@media (max-width: 600px) {
  .demo-frame { max-width: none; }
  .demo-frame iframe { width: 100%; height: 560px; }
}

.note {
  margin-top: 0.9rem;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.5;
}
.demo-widget .note { max-width: 420px; }

/* ---------- Product lines ---------- */

.lines { display: grid; gap: 16px; }
.line { display: grid; gap: 0.25rem 2rem; }
.line h3 { margin: 0; }
.line p { margin: 0; }
.line strong { color: var(--ink); white-space: nowrap; }
@media (min-width: 760px) {
  .line { grid-template-columns: minmax(0, 15rem) minmax(0, 1fr); align-items: baseline; padding: 1.75rem; }
}

/* ---------- Pricing ---------- */

.pricing { align-items: start; }
.price-card { display: flex; flex-direction: column; padding: 1.75rem; }
.price-card h3 { font-size: 1.25rem; }
.price-card .btn { margin-top: 0.25rem; }
.price-card .desc { margin-bottom: 1.5rem; }

.price-card-featured {
  border: 2px solid var(--accent);
  background: linear-gradient(180deg, var(--accent-soft), var(--surface) 38%);
  box-shadow: var(--shadow);
}
.price-card .price { display: flex; align-items: baseline; flex-wrap: wrap; gap: 0 4px; margin: 0.25rem 0 0.1rem; color: var(--ink); }
.price .amount { font-size: 2.6rem; font-weight: 700; letter-spacing: -0.03em; line-height: 1.1; }
.price .per { color: var(--muted); font-size: 1.05rem; font-weight: 500; }
.price-card .price-sub { margin-bottom: 1rem; color: var(--ink); font-weight: 600; }
.price-card .includes { margin-bottom: 0.5rem; color: var(--ink); font-weight: 600; }

.checks { list-style: none; margin: 0 0 1.25rem; padding: 0; }
.checks li {
  position: relative;
  padding: 0.2rem 0 0.2rem 1.75rem;
}
.checks li::before {
  content: "";
  position: absolute;
  left: 0.2rem;
  top: 0.6rem;
  width: 0.7rem;
  height: 0.4rem;
  border-left: 2.5px solid var(--accent-text);
  border-bottom: 2.5px solid var(--accent-text);
  transform: rotate(-45deg);
}

.price-card .free-pill {
  align-self: flex-start;
  margin: 0 0 1.25rem;
  padding: 0.3rem 0.8rem;
  color: var(--accent-text);
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
}

.compare {
  max-width: 80ch;
  margin-top: 2rem;
  padding: 1rem 1.25rem;
  background: var(--bg-alt);
  border-left: 4px solid var(--accent);
  border-radius: 6px;
  color: var(--ink);
  font-size: 1rem;
}
.fine {
  max-width: 80ch;
  margin-top: 1rem;
  color: var(--muted);
  font-size: 1rem;
}

/* ---------- FAQ ---------- */

.faq { display: grid; gap: 10px; max-width: 820px; }
.faq details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.faq summary {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 56px;
  padding: 0.6rem 3.25rem 0.6rem 1.25rem;
  font-weight: 600;
  line-height: 1.35;
  cursor: pointer;
  list-style: none;
  border-radius: var(--radius);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "";
  position: absolute;
  right: 1.25rem;
  top: 50%;
  width: 0.6rem;
  height: 0.6rem;
  margin-top: -0.45rem;
  border-right: 2.5px solid var(--accent-text);
  border-bottom: 2.5px solid var(--accent-text);
  transform: rotate(45deg);
}
.faq details[open] summary::after { margin-top: -0.2rem; transform: rotate(-135deg); }
.faq details[open] summary { color: var(--accent-text); }
.faq details p { margin: 0; padding: 0 1.25rem 1.25rem; color: var(--muted); }

/* ---------- Get started form ---------- */

.start-layout {
  display: grid;
  gap: 28px 56px;
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}
@media (min-width: 900px) {
  .start-layout { grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); }
}
.start-copy p { color: var(--muted); max-width: 44ch; }

.signup { padding: 1.5rem; }
.form-hint { margin-bottom: 1rem; color: var(--muted); font-size: 1rem; }
.fields {
  display: grid;
  gap: 18px 16px;
  grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 620px) {
  .fields { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.field { min-width: 0; }
.field label,
.choices legend {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
}
.field input,
.field select {
  display: block;
  width: 100%;
  min-height: 48px;
  padding: 0 12px;
  font: inherit;
  color: var(--ink);
  background: var(--bg);
  border: 1.5px solid var(--field-line);
  border-radius: 8px;
}
.field input:focus-visible,
.field select:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}
.field input[aria-invalid="true"] { border-color: var(--error); }
.field-error { display: block; margin-top: 6px; color: var(--error); font-size: 1rem; font-weight: 600; }
.field-error:empty { display: none; }

.choices {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 1.5rem 0 0;
  padding: 0;
  border: 0;
  min-width: 0;
}
.choices legend { padding: 0; margin-bottom: 8px; }
.choice {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 12px;
  background: var(--bg);
  border: 1.5px solid var(--field-line);
  border-radius: 8px;
  cursor: pointer;
}
.choice:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.choice input {
  flex: none;
  width: 20px;
  height: 20px;
  margin: 0;
  accent-color: var(--accent);
  font: inherit;
}
.choice span { line-height: 1.3; }

.submit-row { margin-top: 1.5rem; }
.submit-row .btn { min-width: 160px; }
.submit-row .note { margin-top: 0.9rem; }

/* ---------- Footer ---------- */

.site-footer {
  padding-block: 1.5rem;
  border-top: 1px solid var(--line);
  background: var(--bg-alt);
  color: var(--muted);
  font-size: 1rem;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 24px;
}
.footer-inner p { margin: 0; display: flex; align-items: center; min-height: 44px; overflow-wrap: anywhere; }
.footer-brand { color: var(--ink); }
.footer-inner a { display: inline-flex; align-items: center; min-height: 44px; }

/* ---------- Small screens ---------- */

@media (max-width: 520px) {
  .btn-row .btn { width: 100%; }
  .card { padding: 1.25rem; }
  .price-card { padding: 1.5rem 1.25rem; }
  .signup { padding: 1.25rem; }
  .submit-row .btn { width: 100%; }
}