/* assets/site.css — Ultima Water Systems (Water Solutions LLC)
   Calm, premium, expert. Phone-first. Light + dark via prefers-color-scheme. */

:root {
  --bg: #f7f5f0;
  --bg-raised: #ffffff;
  --bg-sunken: #eef0ec;
  --ink: #1c2b2a;
  --ink-soft: #4b5b59;
  --border: #dfe3de;
  --accent: #0f5d54;
  --accent-strong: #0b433c;
  --accent-contrast: #f3f8f2;
  --gold: #a9762c;
  --shadow: 0 10px 30px rgba(20, 40, 38, 0.08);
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --max-width: 1080px;
  --gutter: 16px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1615;
    --bg-raised: #16211f;
    --bg-sunken: #101a18;
    --ink: #eef3f1;
    --ink-soft: #a9bab6;
    --border: #24322f;
    --accent: #52c7ae;
    --accent-strong: #7fe0c9;
    --accent-contrast: #06110f;
    --gold: #d9a75a;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.55;
  overflow-x: hidden;
  padding-bottom: 76px; /* room for the sticky mobile CTA bar */
}

h1, h2, h3, h4 {
  font-family: 'Fraunces', Georgia, 'Times New Roman', serif;
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 0.5em;
  color: var(--ink);
}

h1 { font-size: clamp(1.9rem, 5vw, 2.9rem); }
h2 { font-size: clamp(1.5rem, 3.6vw, 2.1rem); }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1em; color: var(--ink-soft); }

a { color: var(--accent-strong); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ---------- top disclaimer bar ---------- */
.disclaimer-bar {
  background: var(--bg-sunken);
  border-bottom: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--ink-soft);
  text-align: center;
  padding: 6px var(--gutter);
}

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 12px;
  padding-bottom: 12px;
  flex-wrap: wrap;
}

.brand {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 600;
  font-size: 1.15rem;
  text-decoration: none;
  color: var(--ink);
  white-space: nowrap;
}

.brand small {
  display: block;
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

nav.site-nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

nav.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}

nav.site-nav a:hover, nav.site-nav a:focus-visible {
  color: var(--accent-strong);
}

.header-ctas {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.08s ease, box-shadow 0.15s ease;
  line-height: 1.2;
}

.btn:active { transform: translateY(1px); }

.btn-call {
  background: var(--accent);
  color: var(--accent-contrast);
  box-shadow: var(--shadow);
}

.btn-call:hover, .btn-call:focus-visible { background: var(--accent-strong); }

.btn-outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--border);
}

.btn-outline:hover, .btn-outline:focus-visible {
  border-color: var(--accent);
  color: var(--accent-strong);
}

.btn-block { width: 100%; }
.btn svg { width: 18px; height: 18px; flex: none; }

.header-ctas .btn { padding: 10px 16px; font-size: 0.9rem; }

/* ---------- sticky mobile CTA bar ---------- */
.mobile-cta-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 50;
  display: flex;
  gap: 8px;
  padding: 10px var(--gutter);
  background: var(--bg-raised);
  border-top: 1px solid var(--border);
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.08);
}

.mobile-cta-bar .btn { flex: 1; padding: 12px 10px; font-size: 0.92rem; }

@media (min-width: 860px) {
  .mobile-cta-bar { display: none; }
  body { padding-bottom: 0; }
}

/* ---------- hero ---------- */
.hero {
  padding: 56px 0 40px;
}

.hero .eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 14px;
}

.hero p.lead {
  font-size: 1.1rem;
  max-width: 46ch;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
}

/* ---------- check-list (used by "why buy through us" etc.) ---------- */
.check-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.check-list .item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.check-list svg {
  flex: none;
  width: 22px;
  height: 22px;
  color: var(--accent);
  margin-top: 2px;
}

/* ---------- ask-list (used by "what we'll ask you") ---------- */
.ask-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.ask-list li {
  position: relative;
  padding-left: 26px;
  color: var(--ink-soft);
}

.ask-list li::before {
  content: '?';
  position: absolute;
  left: 0;
  top: -0.05em;
  color: var(--accent);
  font-weight: 700;
  font-family: 'Fraunces', Georgia, serif;
}

/* ---------- sections ---------- */
section { padding: 48px 0; }
section.tight { padding: 32px 0; }

.section-head { max-width: 60ch; margin-bottom: 28px; }

/* ---------- system cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
}

.card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: var(--shadow);
}

.card .icon {
  width: 40px;
  height: 40px;
  color: var(--accent);
}

.card h3 { margin-bottom: 2px; }

.card p { flex: 1; font-size: 0.94rem; margin-bottom: 14px; }

.card .btn { align-self: flex-start; }

/* ---------- how it works ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  counter-reset: step;
}

.step {
  position: relative;
  padding-left: 44px;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-contrast);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: 'Fraunces', serif;
}

/* ---------- FAQ ---------- */
.faq details {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1.02rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--accent);
  transition: transform 0.15s ease;
  flex: none;
}

.faq details[open] summary::after { transform: rotate(45deg); }

.faq p { margin-top: 10px; }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--accent-strong);
  color: var(--accent-contrast);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
  text-align: center;
}

.cta-band h2, .cta-band p { color: var(--accent-contrast); }
.cta-band .hero-ctas { justify-content: center; }
.cta-band .btn-call { background: var(--accent-contrast); color: var(--accent-strong); }
.cta-band .btn-outline { border-color: rgba(255,255,255,0.5); color: var(--accent-contrast); }

/* ---------- form ---------- */
.quote-form {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--shadow);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field.full { grid-column: 1 / -1; }

label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
}

input, select, textarea {
  font: inherit;
  padding: 11px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--ink);
  width: 100%;
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

fieldset {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin: 0;
}

fieldset legend {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0 4px;
}

.checkbox-grid, .radio-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 6px;
}

.checkbox-grid label, .radio-row label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  font-size: 0.92rem;
}

.checkbox-grid input, .radio-row input { width: auto; }

/* honeypot — off-screen, never visible, never reached by tab or a screen reader */
.hp-field {
  position: absolute;
  left: -5000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-actions {
  margin-top: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.form-status {
  font-size: 0.92rem;
  font-weight: 600;
}

.form-status.ok { color: var(--accent-strong); }
.form-status.error { color: #b3402c; }

.form-note {
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-top: 10px;
}

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0 24px;
  background: var(--bg-sunken);
  margin-top: 40px;
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.88rem;
}

.footer-links a { color: var(--ink-soft); text-decoration: none; }
.footer-links a:hover { color: var(--accent-strong); }

.footer-disclaimer {
  font-size: 0.8rem;
  color: var(--ink-soft);
  max-width: 70ch;
}

/* ---------- quiz ---------- */
.quiz-shell {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--shadow);
  max-width: 620px;
  margin: 0 auto;
}

.quiz-progress {
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-bottom: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.quiz-options {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.quiz-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg);
  cursor: pointer;
  font-weight: 500;
  text-align: left;
}

.quiz-option:hover, .quiz-option:focus-visible {
  border-color: var(--accent);
}

.quiz-option.selected {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, var(--bg));
}

.quiz-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 22px;
}

.quiz-result {
  text-align: center;
}

.quiz-why {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-strong);
  margin-bottom: 10px;
}

.quiz-result .badge {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

/* ---------- utility ---------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.center { text-align: center; }

@media (max-width: 480px) {
  .hero-ctas .btn, .cta-band .hero-ctas .btn { width: 100%; }
  .form-actions { flex-direction: column; align-items: stretch; }
}