:root {
  --ink: #14324a;
  --muted: #4f6d82;
  --bg: #eef6fb;
  --bg-soft: #e2f0f8;
  --paper: #f7fbfe;
  --sky: #0e8fb8;
  --sky-deep: #0a6d8c;
  --ice: #7ec8e3;
  --line: rgba(20, 50, 74, 0.12);
  --font: 'Anuphan', sans-serif;
  --heading: 'Kanit', 'Anuphan', sans-serif;
  --mono: 'IBM Plex Mono', 'Anuphan', monospace;
  --max: 1100px;
  --demo-h: 48px;
  --header-h: 72px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --radius: 10px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 120px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  font-family: var(--font);
  color: var(--ink);
  line-height: 1.65;
  overflow-x: hidden;
  font-synthesis: none;
  background:
    radial-gradient(ellipse 55% 40% at 0% 0%, rgba(14, 143, 184, 0.12), transparent 55%),
    radial-gradient(ellipse 45% 35% at 100% 20%, rgba(126, 200, 227, 0.22), transparent 50%),
    var(--bg);
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; font-size: 16px; }
ul, ol { list-style: none; }
.wrap { width: min(100% - 2.5rem, var(--max)); margin-inline: auto; }
:focus-visible { outline: 2px solid var(--sky); outline-offset: 3px; }
.mono { font-family: var(--mono); letter-spacing: 0.06em; text-transform: uppercase; font-size: 0.68rem; font-weight: 500; }
.text-link { font-weight: 700; color: var(--sky-deep); }

.demo-bar {
  position: sticky; top: 0; z-index: 60;
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem; flex-wrap: wrap; padding: 0.55rem 1.25rem;
  background: #0c2433; color: #fff; font-size: 0.82rem;
}
.demo-bar strong {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.06em;
  color: var(--ice); font-weight: 500;
}
.demo-bar__actions { display: flex; gap: 0.45rem; flex-wrap: wrap; }
.demo-bar a {
  padding: 0.35rem 0.7rem; border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius); font-size: 0.78rem; font-weight: 500;
}
.demo-bar a.is-primary { background: var(--sky); border-color: var(--sky); color: #fff; }

.site-header {
  position: sticky; top: var(--demo-h); z-index: 50;
  background: rgba(238, 246, 251, 0.93); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: var(--header-h); position: relative;
}
.brand {
  font-family: var(--heading); font-weight: 700; font-size: 1.28rem;
  display: inline-flex; align-items: baseline; gap: 0.45rem;
}
.brand small {
  font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--sky-deep); font-weight: 500;
}
.menu-toggle {
  display: none; background: none; border: 1px solid var(--line);
  padding: 0.45rem 0.8rem; cursor: pointer; border-radius: var(--radius); color: var(--ink);
}
.nav { display: flex; align-items: center; gap: 1.15rem; }
.nav a { font-size: 0.92rem; font-weight: 500; color: var(--muted); }
.nav a:hover { color: var(--ink); }
.nav-cta {
  background: var(--sky); color: #fff !important;
  padding: 0.55rem 1.05rem; border-radius: var(--radius); font-weight: 700;
}

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.9rem 1.4rem; font-weight: 700; border-radius: var(--radius);
  border: 1.5px solid transparent; cursor: pointer;
  transition: transform 0.2s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn--air { background: var(--sky); color: #fff; }
.btn--ghost { color: #fff; border-color: rgba(255,255,255,0.45); background: transparent; }
.btn--block { width: 100%; }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.hero {
  position: relative; min-height: min(90dvh, 820px);
  display: flex; align-items: flex-end; color: #fff; overflow: hidden;
}
.hero__media { position: absolute; inset: 0; }
.hero__media img {
  width: 100%; height: 100%; object-fit: cover;
  animation: ken 22s var(--ease) both;
}
.hero__media::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(118deg, rgba(10, 40, 58, 0.9) 0%, rgba(10, 40, 58, 0.5) 55%, rgba(10, 40, 58, 0.2) 100%);
}
.hero__inner {
  position: relative; z-index: 2; padding: 5rem 0 3.5rem; max-width: 36rem;
  margin-left: max(calc((100% - var(--max)) / 2), 1.25rem);
  width: min(100% - 2.5rem, 36rem);
  animation: rise 0.9s var(--ease) both;
}
.hero__brand {
  font-family: var(--heading); font-size: 1.2rem; font-weight: 700;
  margin-bottom: 1rem; display: flex; gap: 0.5rem; align-items: baseline; flex-wrap: wrap;
}
.hero__brand span {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ice);
}
.hero h1 {
  font-family: var(--heading); font-size: clamp(2.15rem, 5vw, 3.35rem);
  line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 0.9rem;
}
.hero h1 em {
  display: block; font-style: normal; color: var(--ice);
  font-size: 0.72em; margin-top: 0.25rem;
}
.hero__lead { color: rgba(255,255,255,0.88); margin-bottom: 1.5rem; }

@keyframes ken { from { transform: scale(1.05); } to { transform: scale(1); } }
@keyframes rise { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: none; } }

.section { padding: 4.5rem 0; }
.section--sky { background: var(--bg-soft); }
.section--accent { background: #0f3346; color: #fff; }
.section__head { margin-bottom: 2rem; max-width: 40rem; }
.section__head h2 {
  font-family: var(--heading); font-size: clamp(1.75rem, 3.2vw, 2.4rem);
  letter-spacing: -0.02em; margin-bottom: 0.5rem;
}
.section__head p { color: var(--muted); }
.eyebrow {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--sky-deep); margin-bottom: 0.5rem;
}
.eyebrow.light { color: var(--ice); }

/* SAMPLE PATH BOARD */
.path-board {
  position: relative;
  min-height: 340px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.75), rgba(247,251,254,0.95)),
    radial-gradient(circle at 20% 80%, rgba(14,143,184,0.08), transparent 40%);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 2rem 1.5rem 1.5rem;
  overflow: hidden;
}
.path-line {
  position: absolute; inset: 12% 4% auto 4%; width: 92%; height: auto;
  pointer-events: none;
}
.path-line__stroke {
  stroke: var(--sky);
  stroke-width: 3;
  stroke-dasharray: 8 10;
  stroke-linecap: round;
  animation: dashMove 18s linear infinite;
}
.pulse {
  fill: var(--sky);
  animation: pulseDot 2.2s ease-out infinite;
}
.pulse:nth-child(3) { animation-delay: 0.4s; }
.pulse:nth-child(4) { animation-delay: 0.8s; }
.pulse:nth-child(5) { animation-delay: 1.2s; }
@keyframes dashMove { to { stroke-dashoffset: -180; } }
@keyframes pulseDot {
  0% { r: 6; opacity: 1; }
  70% { r: 12; opacity: 0.15; }
  100% { r: 6; opacity: 1; }
}

.path-pins {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
  margin-top: 10rem;
}
.pin a {
  display: grid; gap: 0.35rem;
  padding: 1rem 0.9rem;
  background: var(--paper);
  border: 1.5px solid var(--ink);
  border-radius: var(--radius);
  min-height: 148px;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.pin a:hover {
  transform: translateY(-4px);
  box-shadow: 4px 4px 0 var(--sky);
}
.pin__code {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.1em;
  color: var(--sky); font-weight: 500;
}
.pin strong { font-family: var(--heading); font-size: 1.15rem; }
.pin p { color: var(--muted); font-size: 0.88rem; }

.stop-seq { display: grid; gap: 1.5rem; }
.stop {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 0;
  background: var(--paper); border: 1px solid var(--line); overflow: hidden;
  border-radius: 12px;
}
.stop--flip .stop__media { order: 2; }
.stop--flip .stop__body { order: 1; }
.stop__media { min-height: 240px; overflow: hidden; }
.stop__media img {
  width: 100%; height: 100%; object-fit: cover; min-height: 240px;
  transition: transform 0.7s var(--ease);
}
.stop:hover .stop__media img { transform: scale(1.04); }
.stop__body {
  display: grid; align-content: center; gap: 0.55rem;
  padding: clamp(1.4rem, 3.5vw, 2.4rem);
}
.stop__body h3 {
  font-family: var(--heading); font-size: 1.45rem; letter-spacing: -0.02em;
}
.stop__body .mono { color: var(--sky); }
.stop__body p { color: var(--muted); }

.windows {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
  margin-bottom: 2.5rem;
}
.windows article {
  padding: 1.35rem 1.25rem;
  background: var(--paper);
  border-top: 3px solid var(--sky);
}
.windows__day {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--sky-deep); display: block; margin-bottom: 0.45rem;
}
.windows strong {
  font-family: var(--heading); font-size: 1.2rem; display: block; margin-bottom: 0.25rem;
}
.windows p { color: var(--muted); margin-bottom: 0.55rem; }
.windows em { font-style: normal; font-size: 0.88rem; color: var(--muted); }
.windows em.is-open { color: var(--sky-deep); font-weight: 600; }
.windows em.is-hot { color: #b45309; font-weight: 600; }


.book {
  display: grid; grid-template-columns: 1fr 1.05fr; gap: 2.5rem; align-items: start;
}
.book h2 {
  font-family: var(--heading); font-size: clamp(1.7rem, 3vw, 2.2rem);
  margin-bottom: 0.5rem;
}
.book p { color: rgba(255,255,255,0.78); }
.form {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  padding: 1.5rem; display: grid; gap: 0.9rem;
  border-radius: var(--radius);
}
.field { display: grid; gap: 0.35rem; }
.field label {
  font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--ice);
}
.field input, .field select, .field textarea {
  width: 100%; padding: 0.75rem 0.85rem; border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.22); background: rgba(0,0,0,0.22); color: #fff;
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.85rem; }

.site-footer {
  border-top: 1px solid var(--line); padding: 1.5rem 0; background: var(--paper);
}
.footer {
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem; flex-wrap: wrap; font-size: 0.88rem; color: var(--muted);
}

.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

.voice-path {
  list-style: none;
  margin: 0 auto;
  max-width: 42rem;
  width: 100%;
  padding: 0;
  display: grid;
  gap: 0;
  position: relative;
}
#voices .section__head,
#voices header.section__head {
  max-width: 42rem;
  width: 100%;
  margin-inline: auto;
}

.voice-path::before {
  content: "";
  position: absolute;
  left: 0.85rem;
  top: 0.45rem;
  bottom: 0.45rem;
  width: 1px;
  background: var(--line);
}
.voice-path__step {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0.85rem 1.25rem;
  align-items: start;
  padding: 1.15rem 0;
  position: relative;
}
.voice-path__mark {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--ice);
  padding-top: 0.2rem;
  background: var(--bg, transparent);
  position: relative;
  z-index: 1;
}
.voice-path__step p {
  font-family: var(--heading);
  font-size: 1.15rem;
  line-height: 1.4;
  margin: 0 0 0.55rem;
}
.voice-path__step cite {
  display: block;
  font-style: normal;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 960px) {
  .voice-path::before { left: 0.7rem; }
  .voice-path__step { grid-template-columns: 2rem minmax(0, 1fr); gap: 0.65rem 1rem; }

  .path-pins { grid-template-columns: 1fr 1fr; margin-top: 8rem; }
  .stop, .book, .windows { grid-template-columns: 1fr; }
  .stop--flip .stop__media { order: 0; }
  .field-row { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .menu-toggle { display: inline-flex; }
  .nav {
    display: none; position: absolute; top: 100%; right: 0; left: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: 0.75rem 1.25rem 1rem;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 0.7rem 0; border-bottom: 1px solid var(--line); }
  .nav-cta { text-align: center; margin-top: 0.5rem; }
  .hero__inner { margin-left: 1.25rem; }
  .path-pins { grid-template-columns: 1fr; margin-top: 1rem; }
  .path-line { display: none; }
  .path-board { min-height: auto; }
}