/* MeshTen marketing site — shared styles
   No framework, no build step. Mobile-first. Light default, dark via
   prefers-color-scheme. CSS custom properties drive both themes. */

:root {
  --bg: #f7f8fb;
  --bg-elevated: #ffffff;
  --bg-sunken: #eef0f5;
  --text: #14171f;
  --text-muted: #565d6d;
  --text-faint: #8a90a1;
  --border: #e1e4ea;
  --border-strong: #c7cbd6;
  --accent: #3454d1;
  --accent-hover: #2943ac;
  --accent-contrast: #ffffff;
  --accent-soft: #eaefff;
  --focus-ring: #3454d1;
  --pill-green-bg: #e3f6ea;
  --pill-green-text: #1c7a3f;
  --pill-amber-bg: #fdf1d8;
  --pill-amber-text: #92650d;
  --pill-blue-bg: #e7edff;
  --pill-blue-text: #2943ac;
  --shadow-sm: 0 1px 2px rgba(20, 23, 31, 0.06);
  --shadow-md: 0 8px 24px rgba(20, 23, 31, 0.10);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --max-width: 1120px;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116;
    --bg-elevated: #161a22;
    --bg-sunken: #0a0c10;
    --text: #e9ecf3;
    --text-muted: #a6acbc;
    --text-faint: #6b7182;
    --border: #262b36;
    --border-strong: #363c4a;
    --accent: #6b8bff;
    --accent-hover: #86a0ff;
    --accent-contrast: #0e1116;
    --accent-soft: #1b2440;
    --focus-ring: #86a0ff;
    --pill-green-bg: #10321f;
    --pill-green-text: #63d492;
    --pill-amber-bg: #3a2c0c;
    --pill-amber-text: #e8b94d;
    --pill-blue-bg: #17204a;
    --pill-blue-text: #9db1ff;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.55;
  font-size: 16px;
}

img { max-width: 100%; display: block; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  z-index: 100;
  transition: top 0.15s ease;
}
.skip-link:focus { top: 1rem; text-decoration: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 0.75rem;
}
h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3.4vw, 2.25rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1rem; color: var(--text-muted); }
.lede { font-size: 1.15rem; color: var(--text-muted); }
.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg-elevated) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}
.brand {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--text);
}
.brand:hover { color: var(--text); text-decoration: none; }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.nav-toggle svg { width: 20px; height: 20px; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

.primary-nav {
  display: none;
  width: 100%;
}
.primary-nav.is-open { display: block; }

.nav-links {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.nav-links a[aria-current="page"],
.industries-panel a[aria-current="page"] {
  color: var(--accent);
}
.nav-links a, .nav-links summary {
  display: block;
  padding: 0.6rem 0.25rem;
  color: var(--text);
  font-weight: 600;
  border-radius: var(--radius-sm);
}
.nav-links a:hover, .nav-links summary:hover { text-decoration: none; background: var(--bg-sunken); }

.nav-industries { position: relative; }
.nav-industries summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.nav-industries summary::-webkit-details-marker { display: none; }
.nav-industries summary::after {
  content: "";
  width: 7px;
  height: 7px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  margin-left: 2px;
}
.nav-industries[open] summary::after { transform: rotate(-135deg) translateY(2px); }
.industries-panel {
  list-style: none;
  margin: 0.25rem 0 0.25rem 0.75rem;
  padding: 0;
  border-left: 2px solid var(--border);
}
.industries-panel a { font-weight: 500; padding-left: 0.75rem; }

.nav-cta { margin-top: 0.75rem; }

@media (min-width: 880px) {
  .nav-toggle { display: none; }
  .primary-nav { display: block; width: auto; }
  .nav-links {
    flex-direction: row;
    align-items: center;
    gap: 0.25rem;
    margin: 0;
  }
  .nav-industries { position: relative; }
  .industries-panel {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    min-width: 240px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: 0.4rem;
    margin: 0;
  }
  .industries-panel a { padding: 0.55rem 0.7rem; border-radius: var(--radius-sm); }
  .industries-panel a:hover { background: var(--bg-sunken); }
  .nav-cta { margin: 0 0 0 0.5rem; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.75rem 1.3rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: var(--accent-contrast); }
.btn-primary:hover { background: var(--accent-hover); color: var(--accent-contrast); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover { background: var(--bg-sunken); color: var(--text); }
.btn-block { width: 100%; }

/* ---------- Hero ---------- */
.hero {
  padding: 3.5rem 0 3rem;
  border-bottom: 1px solid var(--border);
}
.hero-grid {
  display: grid;
  gap: 2rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}
.hero-note {
  font-size: 0.85rem;
  color: var(--text-faint);
  margin-top: 0.75rem;
}
.hero-subline {
  font-weight: 600;
  color: var(--text);
  margin: -0.4rem 0 1rem;
}

/* ---------- Trust badge strip ---------- */
.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.6rem;
  margin-top: 1.1rem;
  text-decoration: none;
}
.trust-strip:hover { text-decoration: none; }
.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.38rem 0.7rem;
  white-space: nowrap;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.trust-strip:hover .trust-badge,
.trust-strip:focus-visible .trust-badge {
  border-color: var(--border-strong);
  background: var(--bg-elevated);
  color: var(--text);
}
.trust-badge svg {
  width: 15px;
  height: 15px;
  flex: none;
  color: var(--accent);
}

/* ---------- Sections ---------- */
section { padding: 3.25rem 0; }
.section-border { border-bottom: 1px solid var(--border); }
.section-sunken { background: var(--bg-sunken); }
.section-head { max-width: 640px; margin-bottom: 2rem; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 880px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
  .hero-grid { grid-template-columns: 1.1fr 0.9fr; align-items: center; }
}

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}
.card h3 { margin-bottom: 0.4rem; }
.card p:last-child { margin-bottom: 0; }
.card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.9rem;
  font-size: 1.2rem;
}

.pain-list, .value-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}
.pain-list li, .value-list li {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  color: var(--text-muted);
}
.pain-list li::before { content: "•"; color: var(--text-faint); font-weight: 900; }
.value-list li::before { content: "✓"; color: var(--pill-green-text); font-weight: 900; }

/* ---------- Mock portal (illustrative UI, not real product screenshots) ---------- */
.mock-browser {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.mock-browser-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 0.85rem;
  background: var(--bg-sunken);
  border-bottom: 1px solid var(--border);
}
.mock-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--border-strong); }
.mock-url {
  margin-left: 0.5rem;
  font-size: 0.78rem;
  color: var(--text-faint);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.25rem 0.8rem;
}

.mock-tabs {
  display: flex;
  gap: 0.25rem;
  padding: 0.6rem 0.6rem 0;
  flex-wrap: wrap;
}
.mock-tabs input[type="radio"] { position: absolute; opacity: 0; pointer-events: none; }
.mock-tabs label {
  display: inline-block;
  padding: 0.5rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  cursor: pointer;
  border: 1px solid transparent;
}
.mock-tabs input:checked + label {
  color: var(--accent);
  background: var(--bg-elevated);
  border-color: var(--border);
  border-bottom-color: var(--bg-elevated);
}
.mock-tabs label:hover { color: var(--text); }
.mock-panels { border-top: 1px solid var(--border); position: relative; }
.mock-panel {
  display: none;
  padding: 1.25rem;
  grid-template-columns: 160px 1fr;
  gap: 1rem;
}
.mock-panel:first-of-type { display: grid; } /* fallback if :has() unsupported */
@media (max-width: 560px) {
  .mock-panel { grid-template-columns: 1fr; }
}

/* wiring: one radio+label pair per view inside .mock-tabs; :has() reveals
   the matching panel in .mock-panels. IDs/classes are reused per page
   (tab-admin/tab-staff/tab-customer, panel-admin/panel-staff/panel-customer)
   since each page has exactly one mock portal. */
.mock-tabset { position: relative; }
.mock-tabset:has(#tab-admin:checked) .panel-admin { display: grid; }
.mock-tabset:has(#tab-admin:checked) .panel-staff,
.mock-tabset:has(#tab-admin:checked) .panel-customer { display: none; }
.mock-tabset:has(#tab-staff:checked) .panel-staff { display: grid; }
.mock-tabset:has(#tab-staff:checked) .panel-admin,
.mock-tabset:has(#tab-staff:checked) .panel-customer { display: none; }
.mock-tabset:has(#tab-customer:checked) .panel-customer { display: grid; }
.mock-tabset:has(#tab-customer:checked) .panel-admin,
.mock-tabset:has(#tab-customer:checked) .panel-staff { display: none; }

/* second independent tabset per page (the large product-demo centerpiece)
   uses its own ids (demo-tab-*) and panel classes (demo-panel-*) so it
   doesn't collide with the hero mock's tab-*/panel-* pair above. */
.mock-tabset:has(#demo-tab-admin:checked) .demo-panel-admin { display: grid; }
.mock-tabset:has(#demo-tab-admin:checked) .demo-panel-staff,
.mock-tabset:has(#demo-tab-admin:checked) .demo-panel-customer { display: none; }
.mock-tabset:has(#demo-tab-staff:checked) .demo-panel-staff { display: grid; }
.mock-tabset:has(#demo-tab-staff:checked) .demo-panel-admin,
.mock-tabset:has(#demo-tab-staff:checked) .demo-panel-customer { display: none; }
.mock-tabset:has(#demo-tab-customer:checked) .demo-panel-customer { display: grid; }
.mock-tabset:has(#demo-tab-customer:checked) .demo-panel-admin,
.mock-tabset:has(#demo-tab-customer:checked) .demo-panel-staff { display: none; }

.mock-sidebar {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.mock-sidebar span {
  font-size: 0.82rem;
  padding: 0.5rem 0.65rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}
.mock-sidebar span.active { background: var(--accent-soft); color: var(--accent); font-weight: 700; }

.mock-rows { display: grid; gap: 0.6rem; }
.mock-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  flex-wrap: wrap;
}
.mock-row-main { font-weight: 700; font-size: 0.9rem; }
.mock-row-sub { font-size: 0.8rem; color: var(--text-faint); }

.pill {
  display: inline-flex;
  align-items: center;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  white-space: nowrap;
}
.pill-green { background: var(--pill-green-bg); color: var(--pill-green-text); }
.pill-amber { background: var(--pill-amber-bg); color: var(--pill-amber-text); }
.pill-blue { background: var(--pill-blue-bg); color: var(--pill-blue-text); }

/* ---------- Workflow example tabs (CSS-only, no JS) ---------- */
.workflow-tag {
  font-size: 0.85rem;
  color: var(--text-faint);
  margin: -0.5rem 0 1.5rem;
}
.workflow-tabset { position: relative; }
.workflow-tabset input[type="radio"] { position: absolute; opacity: 0; pointer-events: none; }
.workflow-tab-list {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.workflow-tab-list label {
  display: inline-block;
  padding: 0.55rem 1.1rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
}
.workflow-tab-list label:hover { color: var(--text); }
.workflow-tabset input:checked + label {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}
.workflow-panel { display: none; }
.workflow-panel:first-of-type { display: block; } /* fallback if :has() unsupported */
.workflow-tabset:has(#wf-tab-staffing:checked) .panel-wf-staffing { display: block; }
.workflow-tabset:has(#wf-tab-staffing:checked) .panel-wf-home { display: none; }
.workflow-tabset:has(#wf-tab-home:checked) .panel-wf-home { display: block; }
.workflow-tabset:has(#wf-tab-home:checked) .panel-wf-staffing { display: none; }

/* ---------- Timeline ("See it work" examples) ---------- */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0.25rem 0 0.25rem 1.5rem;
  border-left: 2px solid var(--border);
  display: grid;
  gap: 1.1rem;
}
.timeline li { position: relative; }
.timeline li::before {
  content: "";
  position: absolute;
  left: -1.68rem;
  top: 0.3rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--bg-sunken);
}
.timeline-time {
  display: block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: var(--accent);
  margin-bottom: 0.2rem;
}
.timeline-event { color: var(--text); font-weight: 600; margin: 0; }
.timeline-always {
  margin: 0.5rem 0 0 0;
  padding-top: 1rem;
  border-top: 1px dashed var(--border);
  color: var(--text-muted);
  font-size: 0.92rem;
}
.timeline-note { margin: 1.5rem 0 0; font-weight: 600; color: var(--text); }

/* ---------- Large product demo centerpiece ---------- */
.demo-feature { max-width: 900px; margin: 0 auto; }
.demo-feature .mock-panel { padding: 1.75rem; }
.demo-feature .mock-row-main { font-size: 0.95rem; }
.demo-caption {
  text-align: center;
  margin: 1.5rem 0 0;
  font-weight: 700;
  color: var(--text);
}

/* ---------- How-it-works steps ---------- */
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-contrast);
  font-weight: 800;
  font-size: 0.95rem;
  margin-bottom: 0.9rem;
}

/* ---------- Industries overview ---------- */
.industry-link-card {
  display: block;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.35rem;
  box-shadow: var(--shadow-sm);
  color: var(--text);
}
.industry-link-card:hover { text-decoration: none; border-color: var(--border-strong); }
.industry-link-card .eyebrow { margin-bottom: 0.6rem; }
.industry-link-card .go { color: var(--accent); font-weight: 700; font-size: 0.9rem; }

/* ---------- Proof ---------- */
.proof-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--accent);
  color: var(--accent-contrast);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  text-align: center;
}
.cta-band h2 { color: var(--accent-contrast); }
.cta-band p { color: color-mix(in srgb, var(--accent-contrast) 85%, transparent); }
.cta-band .btn-primary { background: var(--accent-contrast); color: var(--accent); }
.cta-band .btn-primary:hover { background: color-mix(in srgb, var(--accent-contrast) 88%, var(--accent)); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0 2rem;
  margin-top: 2rem;
}
.footer-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
}
.footer-grid h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  margin-bottom: 0.75rem;
}
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.5rem; }
.footer-links a { color: var(--text-muted); }
.footer-bottom {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  color: var(--text-faint);
  font-size: 0.85rem;
}

/* ---------- 404 ---------- */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3rem 1.25rem;
}
.error-page .code {
  font-size: 4rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.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;
}