/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --dark-bg:       #0A0F0C;
  --dark-surface:  #101812;
  --dark-border:   #1F2C25;
  --emerald:       #1F9D5F;
  --emerald-bright:#26B56E;
  --emerald-deep:  #0F5C37;
  --emerald-tint:  #E9F4EE;
  --light-bg:      #F6F7F4;
  --surface:       #FFFFFF;
  --text:          #101812;
  --muted:         #55605A;
  --faint:         #8B968F;
  --border:        #E0E4DB;
  --font-display:  'Fraunces', Georgia, serif;
  --font-body:     'Inter', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--surface);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Nav ──────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 2rem;
}

.nav-logo {
  height: 22px;
  width: auto;
  object-fit: contain;
}

.nav-badge {
  font-family: var(--font-body);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--emerald);
  background: var(--emerald-tint);
  padding: 0.25rem 0.625rem;
  border-radius: 3px;
}

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  background: var(--dark-bg);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--emerald);
}

.hero-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 4rem 2rem 3.5rem;
}

.hero-logo {
  height: 28px;
  width: auto;
  margin-bottom: 1.5rem;
  opacity: 0.9;
}

.hero-eyebrow {
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--emerald);
  margin-bottom: 1rem;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 6vw, 4.5rem);
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.08;
  margin-bottom: 1.5rem;
  max-width: 640px;
}

.hero-sub {
  font-size: 1.0625rem;
  color: #A7B3AC;
  max-width: 560px;
  line-height: 1.7;
}

.hero-rule {
  height: 1px;
  background: var(--dark-border);
}

/* ── Sections ─────────────────────────────────────────────── */
.section {
  padding: 5rem 0;
}

.section-tint {
  background: var(--light-bg);
}

.section-dark {
  background: var(--dark-bg);
}

.section-label {
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--emerald);
  margin-bottom: 0.75rem;
}

.section-label--light {
  color: var(--emerald-bright);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.15;
  margin-bottom: 2rem;
}

.section-title--light {
  color: #FFFFFF;
}

.body-text {
  font-size: 0.9375rem;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 1rem;
  max-width: 520px;
}

/* ── Engagement meta ──────────────────────────────────────── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.engage-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.meta-card {
  background: var(--light-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.125rem;
}

.meta-label {
  font-size: 0.5625rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--faint);
  margin-bottom: 0.375rem;
}

.meta-value {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

/* ── OS Steps ─────────────────────────────────────────────── */
.os-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-top: 0.5rem;
}

.os-step {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  position: relative;
  transition: box-shadow 0.2s;
}

.os-step--active {
  border-color: var(--emerald);
  box-shadow: 0 0 0 1px var(--emerald);
}

.os-step-connector {
  width: 2rem;
  height: 2px;
  background: var(--border);
  margin-top: 2.5rem;
  flex-shrink: 0;
}

.step-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--border);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.os-step--active .step-num {
  color: var(--emerald-tint);
}

.step-tag {
  font-size: 0.5625rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--faint);
  margin-bottom: 0.375rem;
}

.os-step--active .step-tag {
  color: var(--emerald);
}

.step-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.625rem;
}

.step-desc {
  font-size: 0.8125rem;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 1rem;
}

.step-status {
  display: inline-block;
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.625rem;
  border-radius: 20px;
  background: var(--light-bg);
  color: var(--faint);
}

.step-status--active {
  background: var(--emerald-tint);
  color: var(--emerald-deep);
}

/* ── Timeline ─────────────────────────────────────────────── */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 680px;
}

.timeline-row {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 1.25rem;
}

.timeline-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.tl-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--border);
  border: 2px solid var(--border);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.tl-dot--active {
  background: var(--emerald);
  border-color: var(--emerald);
}

.tl-line {
  width: 2px;
  flex: 1;
  background: var(--border);
  margin: 0.25rem 0;
  min-height: 2rem;
}

.tl-line-last {
  width: 2px;
  height: 0;
}

.timeline-content {
  padding-bottom: 2.25rem;
}

.timeline-row--active .tl-range {
  color: var(--emerald);
}

.tl-range {
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--faint);
  margin-bottom: 0.25rem;
}

.tl-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.tl-desc {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.7;
}

/* ── Document Request (dark section) ─────────────────────── */
.doc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.doc-card {
  background: var(--dark-surface);
  border: 1px solid var(--dark-border);
  border-radius: 8px;
  padding: 1.25rem;
}

.doc-num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark-border);
  margin-bottom: 0.5rem;
}

.doc-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: 0.5rem;
}

.doc-desc {
  font-size: 0.8125rem;
  color: #8B968F;
  line-height: 1.65;
}

.doc-callout {
  background: transparent;
  border: 1px solid var(--emerald);
  border-radius: 8px;
  padding: 1.25rem;
  border-left: 4px solid var(--emerald);
}

.callout-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--emerald-bright);
  margin-bottom: 0.5rem;
}

.callout-text {
  font-size: 0.8125rem;
  color: #8B968F;
  line-height: 1.65;
}

.doc-instruction {
  background: var(--dark-surface);
  border: 1px solid var(--dark-border);
  border-radius: 8px;
  padding: 1.125rem 1.5rem;
  font-size: 0.875rem;
  color: #8B968F;
  line-height: 1.7;
}

.doc-instruction-label {
  font-size: 0.5625rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--emerald);
  margin-right: 0.75rem;
}

/* ── Team ─────────────────────────────────────────────────── */
.team-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 1.25rem;
}

.team-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
}

.team-card--primary {
  border-color: var(--emerald);
  background: var(--emerald-tint);
}

.team-role-badge {
  font-size: 0.5625rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--emerald-deep);
  background: #FFFFFF;
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  margin-bottom: 0.75rem;
}

.team-card:not(.team-card--primary) .team-role-badge {
  color: var(--faint);
  background: var(--light-bg);
}

.team-role-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.625rem;
}

.team-role-desc {
  font-size: 0.8125rem;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 0.875rem;
}

.team-availability {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--emerald-deep);
}

/* ── Standards ────────────────────────────────────────────── */
.standards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem 3rem;
}

.standard-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.standard-icon {
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.standard-title {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.375rem;
}

.standard-desc {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.7;
}

/* ── CTA ──────────────────────────────────────────────────── */
.section-cta {
  padding: 5rem 0;
}

.cta-container {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
}

.cta-sub {
  font-size: 0.9375rem;
  color: #8B968F;
  line-height: 1.75;
  max-width: 480px;
  margin-top: -1rem;
}

.cta-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.875rem;
  flex-shrink: 0;
}

.cta-btn {
  display: inline-block;
  background: var(--emerald);
  color: #FFFFFF;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  padding: 0.875rem 2rem;
  border-radius: 6px;
  white-space: nowrap;
  transition: background 0.18s;
}

.cta-btn:hover {
  background: var(--emerald-bright);
}

.cta-note {
  font-size: 0.75rem;
  color: #55605A;
  text-align: center;
}

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  background: var(--dark-surface);
  border-top: 1px solid var(--dark-border);
  padding: 1.75rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  height: 18px;
  width: auto;
  opacity: 0.7;
}

.footer-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.25rem;
}

.footer-tag {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-style: italic;
  color: #55605A;
}

.footer-conf {
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: #2D3B35;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  .two-col { grid-template-columns: 1fr; gap: 2rem; }
  .engage-meta { grid-template-columns: 1fr 1fr; }
  .os-steps { flex-direction: column; }
  .os-step-connector { width: 2px; height: 1.5rem; margin: 0 0 0 1.75rem; }
  .doc-grid { grid-template-columns: 1fr 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .standards-grid { grid-template-columns: 1fr; }
  .cta-container { grid-template-columns: 1fr; gap: 2rem; }
  .cta-block { align-items: flex-start; }
}

@media (max-width: 480px) {
  .doc-grid { grid-template-columns: 1fr; }
  .engage-meta { grid-template-columns: 1fr; }
}