/* ============================================================
   Tranzio — Apple-minimal landing
   Palette: Midnight Navy #031D54 · Electric Blue #2563EB
            Sky Blue #4F8DFF · Ice White #F8FAFC · Slate #6B7280
   Type: Satoshi (400/500/700/900)
   ============================================================ */

:root {
  --navy: #031D54;
  --blue: #2563EB;
  --sky: #4F8DFF;
  --ice: #F8FAFC;
  --slate: #6B7280;
  --line: #E2E8F0;
  --white: #FFFFFF;
  --dark-card: rgba(255, 255, 255, 0.06);
  --dark-line: rgba(255, 255, 255, 0.12);
  --radius: 20px;
  --font: 'Satoshi', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html { scroll-behavior: smooth; }

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

::selection { background: var(--blue); color: var(--white); }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}

/* ---------- Type scale ---------- */

h1 {
  font-size: clamp(3rem, 8.5vw, 6rem);
  font-weight: 900;
  letter-spacing: -0.035em;
  line-height: 1.02;
}

h1 em, .footer-tag em {
  font-style: normal;
  color: var(--blue);
}

h2 {
  font-size: clamp(2.1rem, 5vw, 3.5rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.08;
}

h3 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--blue);
  margin-bottom: 1rem;
}

.section-sub {
  max-width: 34rem;
  margin: 1.25rem auto 0;
  font-size: 1.15rem;
  color: var(--slate);
}

/* ---------- Buttons & links ---------- */

.btn {
  display: inline-block;
  font: inherit;
  font-size: 1rem;
  font-weight: 700;
  padding: 0.8rem 1.7rem;
  border-radius: 980px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn-primary {
  background: var(--blue);
  color: var(--white);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.28);
}

.btn-primary:hover { background: #1D4FD7; transform: translateY(-1px); }

.link-arrow {
  font-weight: 700;
  color: var(--blue);
  text-decoration: none;
}

.link-arrow span { transition: transform 0.2s ease; display: inline-block; }
.link-arrow:hover span { transform: translateX(3px); }

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

/* ---------- Nav ---------- */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(248, 250, 252, 0.72);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease;
}

.nav.scrolled { border-bottom-color: var(--line); }

.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0.7rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--navy);
}

.brand-mark { width: 30px; height: 30px; flex: none; }

.brand-word {
  font-weight: 900;
  letter-spacing: 0.12em;
  font-size: 1.02rem;
  color: var(--navy);
}

.nav-links {
  display: flex;
  gap: 1.6rem;
  margin-left: auto;
}

.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--slate);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-links a:hover { color: var(--navy); }

.btn-nav { padding: 0.5rem 1.2rem; font-size: 0.9rem; }

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

.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 7rem 1.5rem;
  text-align: center;
}

.section.dark {
  max-width: none;
  background: linear-gradient(180deg, #041d52 0%, #020F2E 100%);
  color: var(--ice);
}

.section.dark .section-sub { color: rgba(248, 250, 252, 0.65); }
.section.dark .eyebrow { color: var(--sky); }

/* ---------- Hero ---------- */

.hero {
  max-width: 1120px;
  margin: 0 auto;
  padding: 9.5rem 1.5rem 5rem;
  text-align: center;
}

.pill {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
  border: 1px solid rgba(37, 99, 235, 0.35);
  background: rgba(37, 99, 235, 0.06);
  border-radius: 980px;
  padding: 0.4rem 1rem;
  margin-bottom: 1.75rem;
}

.hero-sub {
  max-width: 37rem;
  margin: 1.75rem auto 0;
  font-size: 1.2rem;
  color: var(--slate);
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.75rem;
  margin-top: 2.25rem;
  flex-wrap: wrap;
}

/* ---------- Signature: in-vehicle screen ---------- */

.screen-wrap { margin-top: 5rem; }

.screen {
  max-width: 860px;
  margin: 0 auto;
  background: linear-gradient(160deg, #041D52 0%, #020F2E 70%, #031636 100%);
  border-radius: 26px;
  border: 1px solid rgba(79, 141, 255, 0.25);
  box-shadow:
    0 40px 80px -24px rgba(3, 29, 84, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  padding: 1.4rem 1.6rem;
  color: var(--ice);
  text-align: left;
}

.screen-top, .screen-bottom {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.screen-top { justify-content: space-between; }

.live {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: rgba(248, 250, 252, 0.6);
}

.live-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #34D399;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.chip {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  padding: 0.3rem 0.75rem;
  border-radius: 980px;
  background: rgba(79, 141, 255, 0.15);
  color: var(--sky);
  white-space: nowrap;
}

.chip-time { background: rgba(255, 255, 255, 0.1); color: var(--ice); }

.chip-ghost {
  background: transparent;
  border: 1px dashed rgba(248, 250, 252, 0.3);
  color: rgba(248, 250, 252, 0.45);
}

.screen-ad {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 2.4rem 0.4rem;
  min-height: 200px;
}

.ad-copy { max-width: 30rem; }

.ad-copy.fading { animation: adfade 0.45s ease; }

@keyframes adfade {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

.ad-eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--sky);
  margin-bottom: 0.6rem;
}

.ad-headline {
  font-size: clamp(1.5rem, 3.4vw, 2.3rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.ad-sub {
  margin-top: 0.7rem;
  font-size: 0.98rem;
  color: rgba(248, 250, 252, 0.65);
}

.ad-qr {
  flex: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.ad-qr svg { width: 92px; height: 92px; border-radius: 10px; }

.ad-qr-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(248, 250, 252, 0.55);
}

.slot {
  flex: 1;
  height: 4px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 4px;
  overflow: hidden;
}

.slot-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--blue), var(--sky));
  border-radius: 4px;
  transition: width 0.3s linear;
}

.screen-caption {
  margin-top: 1.4rem;
  font-size: 0.85rem;
  color: var(--slate);
  text-align: center;
}

/* ---------- Stats ---------- */

.stats {
  max-width: 1120px;
  margin: 0 auto;
  padding: 3rem 1.5rem 6rem;
  text-align: center;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 2.75rem 0;
}

.stat { display: flex; flex-direction: column; gap: 0.3rem; }

.stat-num {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--navy);
  font-variant-numeric: tabular-nums;
}

.stat-label { font-size: 0.9rem; color: var(--slate); font-weight: 500; }

.stats-note { margin-top: 1.2rem; font-size: 0.82rem; color: var(--slate); }

/* ---------- Why transit ---------- */

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 3.5rem;
  text-align: left;
}

.why-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2.2rem 1.9rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.why-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -20px rgba(3, 29, 84, 0.18);
}

.why-num {
  display: block;
  font-size: 2.6rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--navy);
  margin-bottom: 1.1rem;
}

.why-num small { font-size: 1.2rem; font-weight: 700; color: var(--slate); }

.why-card h3 { margin-bottom: 0.5rem; }

.why-card p { font-size: 0.97rem; color: var(--slate); }

.why-card.accent {
  background: linear-gradient(160deg, #2563EB 0%, #1D4FD7 100%);
  border-color: transparent;
  color: var(--white);
}

.why-card.accent .why-num,
.why-card.accent .why-num small,
.why-card.accent p { color: rgba(255, 255, 255, 0.92); }

.why-card.accent p { color: rgba(255, 255, 255, 0.78); }

/* ---------- Ecosystem ---------- */

.eco-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 3.5rem;
  text-align: left;
}

.eco-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.9rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2.2rem 1.9rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.eco-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -20px rgba(3, 29, 84, 0.18);
}

.eco-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(37, 99, 235, 0.1);
  color: var(--blue);
}

.eco-icon svg { width: 24px; height: 24px; }

.eco-card p { font-size: 0.97rem; color: var(--slate); flex: 1; }

/* ---------- Solutions (dark) ---------- */

.sol-grid {
  max-width: 1120px;
  margin: 3.5rem auto 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  text-align: left;
}

.sol-card {
  background: var(--dark-card);
  border: 1px solid var(--dark-line);
  border-radius: var(--radius);
  padding: 2.4rem 2.1rem;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.sol-card:hover {
  border-color: rgba(79, 141, 255, 0.5);
  background: rgba(255, 255, 255, 0.09);
}

.sol-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(79, 141, 255, 0.16);
  color: var(--sky);
  margin-bottom: 1.1rem;
}

.sol-icon svg { width: 24px; height: 24px; }

.sol-card h3 { color: var(--white); margin-bottom: 0.55rem; }

.sol-card p { font-size: 0.97rem; color: rgba(248, 250, 252, 0.62); }

/* ---------- Roadmap ---------- */

.route { margin-top: 4.5rem; position: relative; }

.route-line {
  position: absolute;
  top: 7px;
  left: 0;
  width: 100%;
  height: 8px;
}

.route-dash {
  stroke-dashoffset: 0;
  stroke-dasharray: 10 8;
  opacity: 0;
  transition: opacity 0.6s ease;
}

.route.drawn .route-dash {
  opacity: 1;
  animation: roaddraw 1.6s ease-out;
}

@keyframes roaddraw {
  from { stroke-dasharray: 10 8; stroke-dashoffset: 984; }
  to { stroke-dashoffset: 0; }
}

.route-stops {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: left;
}

.route-stops li { padding-top: 0; }

.route-dot {
  display: block;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--blue);
  border: 3px solid var(--ice);
  box-shadow: 0 0 0 2px var(--blue);
  margin-bottom: 1.4rem;
  position: relative;
  z-index: 1;
}

.route-year {
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.route-stops p {
  margin-top: 0.4rem;
  font-size: 0.94rem;
  color: var(--slate);
  max-width: 15rem;
}

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

.faq-list {
  max-width: 720px;
  margin: 3rem auto 0;
  text-align: left;
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list details:first-child { border-top: 1px solid var(--line); }

.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.4rem 0.2rem;
  font-size: 1.08rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

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

.faq-plus {
  flex: none;
  position: relative;
  width: 14px; height: 14px;
}

.faq-plus::before, .faq-plus::after {
  content: "";
  position: absolute;
  inset: 6px 0;
  background: var(--blue);
  border-radius: 2px;
  transition: transform 0.25s ease;
}

.faq-plus::after { transform: rotate(90deg); }

details[open] .faq-plus::after { transform: rotate(0deg); }

.faq-list details p {
  padding: 0 0.2rem 1.5rem;
  color: var(--slate);
  max-width: 60ch;
}

.faq-list details a { color: var(--blue); font-weight: 500; }

/* ---------- Notify (dark) ---------- */

.notify-form {
  display: flex;
  gap: 0.7rem;
  justify-content: center;
  max-width: 480px;
  margin: 2.25rem auto 0;
}

.notify-form input {
  flex: 1;
  min-width: 0;
  font: inherit;
  font-size: 1rem;
  padding: 0.8rem 1.3rem;
  border-radius: 980px;
  border: 1px solid var(--dark-line);
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
}

.notify-form input::placeholder { color: rgba(248, 250, 252, 0.45); }

.notify-form input:focus {
  outline: none;
  border-color: var(--sky);
  box-shadow: 0 0 0 3px rgba(79, 141, 255, 0.25);
}

.notify-hint {
  margin-top: 1.1rem;
  font-size: 0.82rem;
  color: rgba(248, 250, 252, 0.5);
}

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 3.5rem;
}

.contact-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  text-align: left;
  text-decoration: none;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem 1.9rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.4);
  box-shadow: 0 20px 40px -20px rgba(3, 29, 84, 0.18);
}

.contact-role {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--blue);
}

.contact-mail {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--navy);
  overflow-wrap: anywhere;
}

.contact-note { font-size: 0.9rem; color: var(--slate); }

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

.footer {
  border-top: 1px solid var(--line);
  background: var(--white);
}

.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: center;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-align: left;
}

.footer-tag { font-size: 0.88rem; color: var(--slate); }

.footer-links { display: flex; flex-wrap: wrap; gap: 1.6rem; justify-content: center; }

.footer-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--slate);
  text-decoration: none;
}

.footer-links a:hover { color: var(--navy); }

.footer-legal { font-size: 0.82rem; color: var(--slate); }

/* ---------- Reveal animation ---------- */

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.in { opacity: 1; transform: none; }

.reveal.d1 { transition-delay: 0.08s; }
.reveal.d2 { transition-delay: 0.16s; }
.reveal.d3 { transition-delay: 0.24s; }
.reveal.d4 { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .live-dot { animation: none; }
  .route.drawn .route-dash { animation: none; }
  .ad-copy.fading { animation: none; }
  .why-card:hover, .eco-card:hover, .contact-card:hover, .btn-primary:hover { transform: none; }
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .why-grid, .eco-grid, .contact-grid { grid-template-columns: 1fr; }
  .sol-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem 1rem; }
  .route-line { display: none; }
  .route-stops {
    grid-template-columns: 1fr;
    gap: 0;
    border-left: 2px dashed rgba(37, 99, 235, 0.4);
    padding-left: 1.6rem;
    margin-left: 6px;
  }
  .route-stops li { padding-bottom: 2.2rem; position: relative; }
  .route-dot { position: absolute; left: calc(-1.6rem - 8px); top: 8px; margin: 0; }
  .route-stops p { max-width: none; }
}

@media (max-width: 760px) {
  .nav-links { display: none; }
  .section { padding: 5rem 1.25rem; }
  .hero { padding: 7.5rem 1.25rem 4rem; }
  .screen { padding: 1.1rem 1.2rem; }
  .screen-ad { flex-direction: column; align-items: flex-start; gap: 1.5rem; padding: 1.8rem 0.2rem; min-height: 0; }
  .screen-bottom { flex-wrap: wrap; }
  .chip-ghost { display: none; }
  .hero-cta { flex-direction: column; gap: 1.1rem; }
  .notify-form { flex-direction: column; }
  .notify-form .btn { width: 100%; }
}