/* ============================================================
   MerakAi — Marketing site styles
   Dark theme, editorial, MerakAi blue accents
   ============================================================ */

:root {
  /* Brand */
  --blue: #378ADD;
  --blue-bright: #5BA3EF;
  --blue-glow: rgba(55, 138, 221, 0.18);
  --blue-glow-soft: rgba(55, 138, 221, 0.08);
  --blue-deep: #185FA5;
  --blue-darker: #0C447C;

  /* Dark canvas */
  --bg: #0A0E18;
  --bg-elevated: #10151F;
  --surface: #141A26;
  --surface-2: #1A2030;
  --surface-3: #20283A;

  /* Borders */
  --line: #1F2638;
  --line-soft: #181E2C;
  --line-strong: #2A334A;

  /* Text */
  --text: #F2F4F8;
  --text-soft: #C8CDD9;
  --text-muted: #8A92A6;
  --text-faint: #5C6479;

  /* Type */
  --display: 'Fraunces', Georgia, serif;
  --sans: 'Geist', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'Geist Mono', ui-monospace, monospace;

  --radius: 12px;
  --radius-lg: 16px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body {
  /* Don't use overflow-x:hidden here — it breaks position:sticky on the nav.
     Horizontal overflow is prevented by ensuring no element exceeds 100vw width. */
  max-width: 100vw;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* Atmospheric background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 1200px 600px at 75% 20%, var(--blue-glow-soft), transparent 70%),
    radial-gradient(ellipse 800px 400px at 10% 80%, rgba(55, 138, 221, 0.04), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.012) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.012) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
  z-index: 0;
}
nav, main, footer { position: relative; z-index: 1; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 32px; }

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 14, 24, 0.72);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  height: 80px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 32px;
}
.nav-logo {
  display: inline-flex; align-items: center;
  width: 200px;
}
.nav-logo svg { display: block; width: 100%; height: auto; }
.nav-links {
  display: flex; align-items: center; gap: 36px;
  list-style: none;
  margin-left: auto;
}
.nav-links a {
  color: var(--text-soft);
  font-size: 14.5px;
  font-weight: 400;
  transition: color 0.15s ease;
}
.nav-links a:hover { color: var(--blue-bright); }
.nav-cta { display: flex; align-items: center; gap: 14px; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  padding: 9px 18px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
}
.btn-sm { font-size: 13px; padding: 8px 14px; }
.btn-primary {
  background: var(--blue);
  color: white;
  box-shadow:
    0 0 0 1px rgba(91, 163, 239, 0.4) inset,
    0 1px 0 rgba(255,255,255,0.15) inset,
    0 0 24px var(--blue-glow);
}
.btn-primary:hover {
  background: var(--blue-bright);
  box-shadow:
    0 0 0 1px rgba(91, 163, 239, 0.6) inset,
    0 1px 0 rgba(255,255,255,0.2) inset,
    0 0 32px var(--blue-glow);
}
.btn-secondary {
  background: rgba(255,255,255,0.04);
  color: var(--text);
  border: 1px solid var(--line-strong);
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.07);
  border-color: var(--text-muted);
}
.btn-hero {
  font-size: 15px;
  padding: 14px 24px;
  border-radius: 10px;
}
.btn-cta {
  font-size: 15px;
  padding: 13px 22px;
  border-radius: 10px;
}
.arrow { width: 14px; height: 14px; transition: transform 0.2s ease; }
.btn-primary:hover .arrow { transform: translateX(3px); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding: 96px 0 140px;
  position: relative;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 72px;
  align-items: center;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--blue-bright);
  background: rgba(55, 138, 221, 0.10);
  padding: 7px 14px;
  border-radius: 100px;
  border: 1px solid rgba(55, 138, 221, 0.22);
  letter-spacing: 0.02em;
  margin-bottom: 32px;
  opacity: 0;
  animation: fadeUp 0.7s 0.1s ease-out forwards;
}
.eyebrow-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--blue-bright);
  box-shadow: 0 0 8px var(--blue-bright);
}

h1.headline {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(44px, 5.4vw, 72px);
  line-height: 1.04;
  letter-spacing: -0.026em;
  color: var(--text);
  margin-bottom: 32px;
  opacity: 0;
  animation: fadeUp 0.8s 0.2s ease-out forwards;
}
h1.headline em {
  font-style: italic;
  font-weight: 400;
  color: var(--blue-bright);
  display: inline;
}

.subhead {
  font-size: 19px;
  line-height: 1.6;
  color: var(--text-soft);
  max-width: 540px;
  margin-bottom: 44px;
  font-weight: 300;
  opacity: 0;
  animation: fadeUp 0.8s 0.35s ease-out forwards;
}

.cta-row {
  display: flex; align-items: center; gap: 12px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s 0.5s ease-out forwards;
}

/* ============================================================
   PRODUCT MOCKUP PANEL
   ============================================================ */
.mockup-wrap {
  position: relative;
  opacity: 0;
  animation: fadeUp 1s 0.4s ease-out forwards;
}
.mockup-wrap::before {
  content: '';
  position: absolute;
  inset: -60px -40px;
  background: radial-gradient(ellipse at center, var(--blue-glow) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}
.panel {
  position: relative; z-index: 1;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.02) inset,
    0 1px 0 rgba(255,255,255,0.04) inset,
    0 24px 60px -20px rgba(0,0,0,0.6),
    0 0 80px -20px var(--blue-glow);
  overflow: hidden;
}
.panel-chrome {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--line);
}
.chrome-dot {
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--surface-3);
}
.chrome-title {
  margin-left: 14px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-muted);
}
.doc-header {
  padding: 20px 24px 18px;
  border-bottom: 1px solid var(--line-soft);
  display: flex; align-items: flex-start; justify-content: space-between; gap: 16px;
}
.doc-meta-block { min-width: 0; }
.doc-bates {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-muted);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}
.doc-title {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 5px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.doc-from { font-size: 12.5px; color: var(--text-muted); }

.priv-flag {
  flex-shrink: 0;
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 11.5px;
  font-weight: 500;
  color: var(--blue-bright);
  background: rgba(55, 138, 221, 0.12);
  padding: 6px 12px;
  border-radius: 100px;
  border: 1px solid rgba(55, 138, 221, 0.3);
}
.priv-flag .pulse {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue-bright);
  box-shadow: 0 0 0 0 rgba(91, 163, 239, 0.7);
  animation: pulse 2s infinite;
}

.columns-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--line-soft);
}
.col-head {
  padding: 13px 24px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  display: flex; align-items: center; justify-content: space-between;
}
.col-head-ai {
  border-right: 1px solid var(--line-soft);
  background: linear-gradient(to right, rgba(55, 138, 221, 0.06), transparent);
  color: var(--blue-bright);
}
.conf-badge {
  font-family: var(--sans);
  font-size: 10.5px;
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
  color: var(--blue-bright);
  background: rgba(55, 138, 221, 0.15);
  padding: 2px 7px;
  border-radius: 4px;
}
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--line-soft);
}
.field-row:last-child { border-bottom: none; }
.field-cell {
  padding: 14px 24px;
  min-height: 68px;
  display: flex; flex-direction: column; gap: 5px; justify-content: center;
}
.field-cell-ai {
  border-right: 1px solid var(--line-soft);
  background: linear-gradient(to right, rgba(55, 138, 221, 0.04), transparent);
}
.field-label {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.field-value {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text);
  display: flex; align-items: center; gap: 7px;
}
.field-value .check {
  width: 14px; height: 14px;
  border-radius: 4px;
  background: rgba(74, 222, 128, 0.18);
  color: #4ADE80;
  border: 1px solid rgba(74, 222, 128, 0.35);
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.field-value .pending {
  width: 14px; height: 14px;
  border-radius: 4px;
  border: 1px dashed var(--text-faint);
  flex-shrink: 0;
}
.field-reason { font-size: 11.5px; color: var(--text-muted); line-height: 1.4; }
.empty-field { color: var(--text-faint); font-size: 13px; font-weight: 400; font-style: italic; }
.panel-footer {
  padding: 13px 24px;
  background: var(--bg-elevated);
  border-top: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px;
}
.footer-meta { font-family: var(--mono); font-size: 11px; color: var(--text-muted); }
.footer-actions { display: flex; gap: 8px; }
.mini-btn {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 6px;
  border: none;
}
.mini-btn-ghost { background: transparent; color: var(--text-muted); }
.mini-btn-ghost:hover { color: var(--text); }
.mini-btn-primary {
  background: var(--blue);
  color: white;
  box-shadow: 0 0 0 1px rgba(91, 163, 239, 0.3) inset;
}

/* ============================================================
   SECTION DEFAULTS
   ============================================================ */
.section { padding: 120px 0; border-top: 1px solid var(--line-soft); }
.section-eyebrow {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--text-faint);
  margin-bottom: 24px;
}
.section-headline {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(34px, 4.2vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.022em;
  color: var(--text);
  max-width: 880px;
}
.section-headline em {
  font-style: italic;
  color: var(--blue-bright);
}

/* ============================================================
   SECTION 2 — THE PROMISE
   ============================================================ */
.section-promise { text-align: center; padding: 140px 0 100px; }
.section-promise .section-eyebrow { margin-bottom: 28px; }
.section-promise .section-headline { margin: 0 auto 40px; }
.section-promise .section-body {
  max-width: 640px;
  margin: 0 auto;
  font-size: 18px;
  line-height: 1.75;
  color: var(--text-soft);
  font-weight: 300;
}
.section-promise .section-body p + p { margin-top: 22px; }
.section-promise .emphasis { color: var(--text); font-weight: 400; }

/* ============================================================
   SHARED — section header grid (used by Platform, How, etc.)
   ============================================================ */
.section-header-grid { margin-bottom: 64px; max-width: 880px; }
.section-header-grid .section-headline { font-size: clamp(34px, 4vw, 50px); }

/* ============================================================
   SECTION 4 — TRUST PRINCIPLES
   ============================================================ */
.section-principles { padding: 140px 0 120px; }
.section-principles .section-headline { margin-bottom: 56px; max-width: 880px; }

.principles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px 64px;
}
.principle {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 20px;
  align-items: flex-start;
}
.principle-content {
  min-width: 0;
}
.principle-marker {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: rgba(55, 138, 221, 0.10);
  border: 1px solid rgba(55, 138, 221, 0.22);
  color: var(--blue-bright);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.principle-marker svg { width: 22px; height: 22px; }
.principle-title {
  font-family: var(--display);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 8px;
}
.principle-body {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--text-soft);
  font-weight: 300;
}

/* ============================================================
   SECTION 5 — FINAL CTA
   ============================================================ */
.section-cta {
  padding: 140px 0 160px;
  text-align: center;
  position: relative;
}
.section-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 800px 400px at center, var(--blue-glow), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.section-cta > * { position: relative; z-index: 1; }
.cta-eyebrow {
  display: inline-flex; align-items: center;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--blue-bright);
  background: rgba(55, 138, 221, 0.10);
  padding: 7px 14px;
  border-radius: 100px;
  border: 1px solid rgba(55, 138, 221, 0.22);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.cta-headline {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(36px, 4.4vw, 60px);
  line-height: 1.06;
  letter-spacing: -0.025em;
  color: var(--text);
  max-width: 800px;
  margin: 0 auto 20px;
}
.cta-headline em {
  font-style: italic;
  color: var(--blue-bright);
}
.cta-subhead {
  font-size: 18px;
  color: var(--text-soft);
  margin-bottom: 40px;
  font-weight: 300;
}

.waitlist-form {
  max-width: 480px;
  margin: 0 auto;
}
.form-row {
  display: flex;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  padding: 6px;
  transition: border-color 0.15s ease;
}
.form-row:focus-within {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(55, 138, 221, 0.12);
}
.email-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 11px 14px;
  font-family: var(--sans);
  font-size: 15px;
  color: var(--text);
}
.email-input::placeholder { color: var(--text-faint); }
.btn-cta { flex-shrink: 0; }

.form-disclaimer {
  margin-top: 14px;
  font-size: 13px;
  color: var(--text-muted);
}

.waitlist-success {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
  max-width: 480px;
  margin: 0 auto;
  padding: 24px;
  background: rgba(74, 222, 128, 0.08);
  border: 1px solid rgba(74, 222, 128, 0.25);
  border-radius: 12px;
}
.success-icon {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(74, 222, 128, 0.18);
  color: #4ADE80;
  display: flex; align-items: center; justify-content: center;
}
.success-icon svg { width: 20px; height: 20px; }
.success-message {
  font-size: 15px;
  color: var(--text);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: 56px 0 64px;
  border-top: 1px solid var(--line);
  background: rgba(10, 14, 24, 0.6);
}
.footer-grid {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.footer-left { display: flex; flex-direction: column; gap: 10px; }
.footer-logo {
  width: 180px;
  display: inline-flex;
}
.footer-logo svg { display: block; width: 100%; height: auto; }
.footer-tagline {
  font-family: var(--display);
  font-style: italic;
  font-size: 17px;
  color: var(--text-muted);
}
.footer-right {
  display: flex; flex-direction: column; align-items: flex-end; gap: 8px;
}
.footer-link {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-soft);
  transition: color 0.15s ease;
}
.footer-link:hover { color: var(--blue-bright); }
.footer-copy {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-faint);
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(91, 163, 239, 0.55); }
  70%  { box-shadow: 0 0 0 9px rgba(91, 163, 239, 0); }
  100% { box-shadow: 0 0 0 0 rgba(91, 163, 239, 0); }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 960px) {
  .container { padding: 0 24px; }
  .nav-inner { gap: 16px; }
  .nav-links { display: none; }
  .hero { padding: 64px 0 96px; }
  .hero-grid { grid-template-columns: 1fr; gap: 56px; }
  .section { padding: 88px 0; }
  .principles-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { flex-direction: column; align-items: flex-start; gap: 24px; }
  .footer-right { align-items: flex-start; }
  .form-row { flex-direction: column; gap: 6px; padding: 8px; }
  .btn-cta { width: 100%; justify-content: center; }
  .email-input { padding: 13px 14px; }
}

@media (max-width: 560px) {
  .container { padding: 0 20px; }
  .hero { padding: 48px 0 64px; }
  .section { padding: 64px 0; }
  .nav-cta .btn { font-size: 12px; padding: 7px 12px; }
}

/* ============================================================
   SECTION — HOW MERAKAI WORKS (workflow)
   ============================================================ */
.section-how { padding: 140px 0 120px; }
.section-how .section-header-grid { margin-bottom: 72px; max-width: 880px; }
.section-lede {
  font-size: 18px;
  line-height: 1.65;
  color: var(--text-soft);
  font-weight: 300;
  margin-top: 24px;
  max-width: 720px;
}

.workflow {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 880px;
  margin: 0 auto;
}
.stage {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 28px;
  padding-bottom: 48px;
  align-items: flex-start;
}
.stage:last-child { padding-bottom: 0; }

.stage-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  position: relative;
}
.stage-num {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  color: var(--blue-bright);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.stage-line {
  flex: 1;
  width: 1px;
  background: linear-gradient(to bottom, var(--line-strong), var(--line-soft));
  margin-top: 6px;
}
.stage-line-last {
  background: linear-gradient(to bottom, var(--line-strong), transparent);
}

.stage-content {
  padding-top: 6px;
}
.stage-icon {
  width: 36px; height: 36px;
  color: var(--blue-bright);
  margin-bottom: 16px;
  opacity: 0.85;
}
.stage-icon svg { width: 100%; height: 100%; }
.stage-title {
  font-family: var(--display);
  font-size: 24px;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--text);
  margin-bottom: 12px;
}
.stage-body {
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--text-soft);
  font-weight: 300;
  margin-bottom: 12px;
}
.stage-detail {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-muted);
  font-weight: 300;
  font-style: italic;
}

/* ============================================================
   RESPONSIVE — sections
   ============================================================ */
@media (max-width: 720px) {
  .stage {
    grid-template-columns: 40px 1fr;
    gap: 20px;
    padding-bottom: 40px;
  }
  .stage-num { width: 36px; height: 36px; font-size: 12px; }
  .stage-title { font-size: 20px; }
  .stage-body { font-size: 14.5px; }
}

/* ============================================================
   BACK TO TOP — floating button
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text-soft);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0s 0.25s, color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
  z-index: 40;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0s, color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.back-to-top:hover {
  color: var(--blue-bright);
  border-color: var(--blue);
  background: var(--surface-2);
}
.back-to-top svg {
  width: 18px;
  height: 18px;
}

/* Make the nav logo cursor obviously a pointer (it's already a link, but emphasize) */
.nav-logo { cursor: pointer; }

@media (max-width: 560px) {
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
  }
}

/* ============================================================
   SECTION — THE PLATFORM (3 phases × 2 capabilities)
   ============================================================ */
.section-platform { padding: 140px 0 120px; }
.section-platform .section-header-grid { margin-bottom: 80px; max-width: 880px; }

.phases {
  display: flex;
  flex-direction: column;
  gap: 88px;
}

.phase {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.phase-header {
  max-width: 880px;
}
.phase-eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--blue-bright);
  margin-bottom: 16px;
}
.phase-pitch {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(28px, 3.2vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text);
  margin: 0;
}
.phase-pitch em {
  font-style: italic;
  color: var(--blue-bright);
}

.capability-pair {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.capability {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px 28px 36px;
  transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
  position: relative;
}
.capability:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  background: var(--surface-2);
}
.capability-icon {
  width: 44px; height: 44px;
  color: var(--blue-bright);
  margin-bottom: 22px;
}
.capability-icon svg { width: 100%; height: 100%; }
.capability-title {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.012em;
  color: var(--text);
  margin: 0 0 10px;
}
.capability-tagline {
  font-size: 15px;
  font-weight: 500;
  color: var(--blue-bright);
  margin: 0 0 16px;
}
.capability-body {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--text-soft);
  font-weight: 300;
  margin: 0;
}

@media (max-width: 860px) {
  .phases { gap: 64px; }
  .capability-pair { grid-template-columns: 1fr; }
  .phase-pitch { font-size: clamp(24px, 5.5vw, 32px); }
}

/* ============================================================
   HERO TRUST STRIP — small reassurance row below CTAs
   ============================================================ */
.trust-strip {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  margin-top: 32px;
  padding: 0;
  opacity: 0;
  animation: fadeUp 0.8s 0.65s ease-out forwards;
}
.trust-strip li {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.01em;
  position: relative;
  padding-left: 18px;
}
.trust-strip li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--blue-bright);
  opacity: 0.6;
}
.trust-strip li:first-child {
  padding-left: 0;
}
.trust-strip li:first-child::before {
  display: none;
}

@media (max-width: 560px) {
  .trust-strip { gap: 6px 14px; margin-top: 24px; }
  .trust-strip li { font-size: 11.5px; padding-left: 14px; }
}