/* PRI Investor Pitch — slate / steel / teal infrastructure */
:root {
  --navy: #0f2744;
  --navy-deep: #0a1a2e;
  --steel: #5b7c99;
  --steel-soft: #7a92a8;
  --mist: #e8eef2;
  --paper: #f4f7f9;
  --ink: #142033;
  --ink-muted: #3d5166;
  --teal: #1a7a6d;
  --teal-deep: #0f564c;
  --forest: #1e4d3a;
  --line: rgba(15, 39, 68, 0.12);
  --shadow: 0 18px 50px rgba(10, 26, 46, 0.18);
  --radius: 14px;
  --font-display: "Syne", "IBM Plex Sans Thai", sans-serif;
  --font-body: "IBM Plex Sans Thai", sans-serif;
  --topbar-h: 3.5rem;
  --hint-h: 2.25rem;
  --touch: 44px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.55;
  color: var(--ink);
  background: var(--navy-deep);
  overflow: hidden;
}

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

button {
  font: inherit;
  cursor: pointer;
}

a {
  color: var(--teal-deep);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--teal);
  color: #fff;
  padding: 0.75rem 1rem;
  z-index: 100;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

.app {
  height: 100dvh;
  display: grid;
  grid-template-rows: var(--topbar-h) 1fr var(--hint-h);
  position: relative;
}

.app[data-loading="true"] .deck {
  align-items: center;
  justify-content: center;
}

.loading-msg,
.noscript {
  color: var(--mist);
  text-align: center;
  padding: 2rem;
}

/* —— Top bar —— */
.topbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0 0.65rem;
  background: rgba(10, 26, 46, 0.92);
  color: var(--mist);
  border-bottom: 1px solid rgba(232, 238, 242, 0.08);
  z-index: 20;
}

.topbar__brand {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
  flex: 0 1 auto;
}

.brand-logo-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #000;
  border-radius: 8px;
  padding: 0.2rem 0.35rem;
  line-height: 0;
  flex-shrink: 0;
}

.brand-logo {
  width: auto;
  height: 34px;
  max-width: min(110px, 30vw);
  object-fit: contain;
  display: block;
}

.brand-sub {
  font-size: 0.62rem;
  opacity: 0.7;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 42vw;
}

.topbar__nav {
  display: none;
  flex: 1;
  gap: 0.25rem;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  padding: 0 0.25rem;
}

.topbar__nav::-webkit-scrollbar {
  display: none;
}

.nav-dot {
  flex: 0 0 auto;
  min-width: var(--touch);
  min-height: var(--touch);
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: rgba(232, 238, 242, 0.55);
  font-size: 0.7rem;
  padding: 0 0.65rem;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}

.nav-dot[aria-current="true"] {
  color: #fff;
  background: rgba(26, 122, 109, 0.35);
}

.topbar__actions {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
}

.slide-counter {
  font-variant-numeric: tabular-nums;
  font-size: 0.75rem;
  min-width: 3.5rem;
  text-align: center;
  opacity: 0.85;
}

.btn {
  min-width: var(--touch);
  min-height: var(--touch);
  border-radius: 10px;
  border: 1px solid transparent;
  padding: 0.5rem 0.85rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.btn:active {
  transform: scale(0.97);
}

.btn--ghost {
  background: rgba(232, 238, 242, 0.08);
  color: var(--mist);
  border-color: rgba(232, 238, 242, 0.12);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: rgba(26, 122, 109, 0.35);
  outline: none;
}

.btn--primary {
  background: var(--teal);
  color: #fff;
  border-color: var(--teal-deep);
  font-weight: 600;
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--teal-deep);
  outline: none;
}

.btn--secondary {
  background: transparent;
  color: var(--navy);
  border-color: rgba(15, 39, 68, 0.25);
  font-weight: 600;
}

.btn--secondary:hover,
.btn--secondary:focus-visible {
  border-color: var(--teal);
  color: var(--teal-deep);
  outline: none;
}

/* —— Deck —— */
.deck {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(26, 122, 109, 0.18), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(91, 124, 153, 0.22), transparent 50%),
    linear-gradient(160deg, var(--paper) 0%, var(--mist) 45%, #d9e4ec 100%);
}

.slide {
  position: absolute;
  inset: 0;
  padding: 1rem 1rem 1.25rem;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  opacity: 0;
  visibility: hidden;
  transform: translateX(2.5rem);
  transition:
    opacity 0.45s var(--ease),
    transform 0.5s var(--ease),
    visibility 0.45s;
  pointer-events: none;
}

.slide.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
  pointer-events: auto;
  z-index: 2;
}

.slide.is-exit-left {
  transform: translateX(-2rem);
}

.slide__inner {
  width: min(1100px, 100%);
  margin: 0 auto;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.kicker {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel);
  font-weight: 600;
}

h1,
h2,
.h-display {
  font-family: var(--font-display);
  font-weight: 750;
  line-height: 1.15;
  margin: 0;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(1.65rem, 5.2vw, 3.1rem);
  color: var(--navy);
  max-width: 18ch;
}

h2 {
  font-size: clamp(1.35rem, 3.6vw, 2.35rem);
  color: var(--navy);
  max-width: 28ch;
}

.lede {
  margin: 0;
  color: var(--ink-muted);
  font-size: clamp(0.95rem, 2.2vw, 1.15rem);
  max-width: 42rem;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.list li {
  position: relative;
  padding-left: 1.15rem;
  color: var(--ink);
}

.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--teal);
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  background: rgba(26, 122, 109, 0.12);
  color: var(--teal-deep);
  font-size: 0.8rem;
  font-weight: 600;
}

.note {
  font-size: 0.85rem;
  color: var(--ink-muted);
  border-left: 3px solid var(--teal);
  padding-left: 0.75rem;
}

.evidence {
  font-size: 0.75rem;
  color: var(--steel);
}

/* —— Hero (one composition, brand-first, full-bleed visual) —— */
.slide--hero {
  padding: 0;
  background: var(--navy-deep);
  color: var(--mist);
}

.hero {
  position: relative;
  min-height: 100%;
  display: grid;
  align-content: end;
  padding: clamp(1.25rem, 4vw, 3rem);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(10, 26, 46, 0.92) 0%, rgba(10, 26, 46, 0.55) 48%, rgba(10, 26, 46, 0.25) 100%),
    url("../assets/hero.png") center / cover no-repeat;
  transform: scale(1.04);
  animation: heroDrift 18s ease-in-out infinite alternate;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(232, 238, 242, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232, 238, 242, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(90deg, #000 20%, transparent 85%);
  animation: gridPulse 10s linear infinite;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 36rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  animation: riseIn 0.8s var(--ease) both;
}

.hero .brand-logo-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #000;
  border-radius: 8px;
  padding: 0.2rem 0.35rem;
  line-height: 0;
  flex-shrink: 0;
}

.brand-logo {
  width: auto;
  height: 34px;
  max-width: min(110px, 30vw);
  object-fit: contain;
  display: block;
}

.hero .brand-logo--hero {
  height: 56px;
  max-width: min(170px, 55vw);
}

.hero .brand-logo-wrap {
  padding: 0.35rem 0.55rem;
  border-radius: 10px;
  align-self: flex-start;
}

.hero .brand-full {
  font-size: clamp(0.85rem, 2.2vw, 1.05rem);
  color: var(--steel-soft);
  letter-spacing: 0.02em;
}

.hero h1 {
  color: #fff;
  max-width: 16ch;
}

.hero .lede {
  color: rgba(232, 238, 242, 0.88);
}

.hero .tagline {
  font-size: 0.82rem;
  color: rgba(155, 214, 201, 0.95);
  max-width: 34rem;
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 0.35rem;
}

.cta-group .btn {
  min-height: var(--touch);
}

.slide--hero .btn--secondary {
  color: #fff;
  border-color: rgba(232, 238, 242, 0.35);
}

.slide--hero .btn--secondary:hover,
.slide--hero .btn--secondary:focus-visible {
  background: rgba(232, 238, 242, 0.1);
  color: #fff;
}

@keyframes heroDrift {
  from { transform: scale(1.04) translate3d(0, 0, 0); }
  to { transform: scale(1.08) translate3d(-1.5%, -1%, 0); }
}

@keyframes gridPulse {
  from { background-position: 0 0, 0 0; }
  to { background-position: 48px 48px, 48px 0; }
}

@keyframes riseIn {
  from { opacity: 0; transform: translateY(1.25rem); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes chainDraw {
  from { stroke-dashoffset: 240; opacity: 0.2; }
  to { stroke-dashoffset: 0; opacity: 1; }
}

/* —— Interactive panels (cards only for interaction / scan blocks) —— */
.panel {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.05rem;
  backdrop-filter: blur(6px);
}

.panel--slate {
  border-top: 3px solid var(--navy);
}

.panel--teal {
  border-top: 3px solid var(--teal);
}

.panel h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--navy);
}

.panel .meta {
  font-size: 0.8rem;
  color: var(--steel);
  margin-bottom: 0.65rem;
}

.pillars {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: 1fr;
}

.pillar {
  padding: 0.85rem 0.95rem;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--line);
  border-left: 3px solid var(--teal);
}

.pillar strong {
  display: block;
  font-family: var(--font-display);
  color: var(--navy);
  margin-bottom: 0.15rem;
}

.pillar span {
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.systems {
  display: grid;
  gap: 0.75rem;
}

.module-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.module-wrap span {
  font-size: 0.72rem;
  padding: 0.28rem 0.55rem;
  border-radius: 6px;
  background: rgba(15, 39, 68, 0.06);
  color: var(--ink-muted);
}

.trust-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.75rem;
  border-radius: var(--radius);
  background: linear-gradient(90deg, rgba(15, 39, 68, 0.08), rgba(26, 122, 109, 0.12));
}

.trust-bar span {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--navy);
  padding: 0.35rem 0.55rem;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 6px;
}

.chain {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}

.chain span {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--navy);
  background: #fff;
  border: 1px solid var(--line);
  padding: 0.35rem 0.55rem;
  border-radius: 999px;
}

.chain i {
  font-style: normal;
  color: var(--teal);
  font-size: 0.75rem;
}

.arch-frame {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--shadow);
}

.arch-frame img {
  width: 100%;
  max-height: min(52vh, 520px);
  object-fit: contain;
  background: #f0f4f7;
}

.trace {
  font-family: var(--font-display);
  font-size: clamp(0.72rem, 1.8vw, 0.9rem);
  color: var(--teal-deep);
  letter-spacing: 0.02em;
  word-break: break-word;
}

.pilot-grid {
  display: grid;
  gap: 0.75rem;
}

.why-grid {
  display: grid;
  gap: 0.65rem;
}

.why-item strong {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.2rem;
}

.phase-rail {
  display: grid;
  gap: 0.55rem;
}

.phase {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.65rem;
  align-items: start;
  padding: 0.7rem 0.85rem;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 12px;
  border: 1px solid var(--line);
}

.phase__id {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--navy);
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
}

.phase__weeks {
  font-size: 0.75rem;
  color: var(--steel);
}

.team-grid {
  display: grid;
  gap: 0.65rem;
}

.ask-packages {
  display: grid;
  gap: 0.65rem;
}

.pkg {
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.7);
}

.pkg--hot {
  border-color: rgba(26, 122, 109, 0.45);
  background: linear-gradient(180deg, rgba(26, 122, 109, 0.12), rgba(255, 255, 255, 0.85));
}

.pkg__price {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 4vw, 2rem);
  color: var(--navy);
  margin: 0.25rem 0;
}

.pkg__bands {
  font-size: 0.8rem;
  color: var(--ink-muted);
}

.funds {
  display: grid;
  gap: 0.45rem;
}

.fund-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.85rem;
}

.fund-bar {
  grid-column: 1 / -1;
  height: 0.45rem;
  border-radius: 999px;
  background: rgba(15, 39, 68, 0.08);
  overflow: hidden;
}

.fund-bar > i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--navy), var(--teal));
  border-radius: inherit;
  transform-origin: left center;
  animation: riseIn 0.8s var(--ease) both;
}

.rate-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.rate-table th,
.rate-table td {
  text-align: left;
  padding: 0.45rem 0.35rem;
  border-bottom: 1px solid var(--line);
}

.rate-table th {
  color: var(--steel);
  font-weight: 600;
}

.close-q {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.8vw, 1.35rem);
  color: var(--navy);
  margin: 0;
}

.banner {
  padding: 0.65rem 0.85rem;
  border-radius: 10px;
  background: rgba(15, 39, 68, 0.08);
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.comp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.comp-table th,
.comp-table td {
  padding: 0.5rem 0.4rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.comp-table th {
  text-align: left;
  color: var(--steel);
}

/* Progress + hint */
.progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: var(--hint-h);
  height: 3px;
  background: rgba(15, 39, 68, 0.08);
  z-index: 15;
  pointer-events: none;
}

.progress__bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--steel), var(--teal));
  transition: width 0.35s var(--ease);
}

.hintbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0 0.85rem;
  background: rgba(10, 26, 46, 0.95);
  color: rgba(232, 238, 242, 0.7);
  font-size: 0.72rem;
}

.hintbar kbd {
  display: inline-block;
  min-width: 1.4rem;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  border: 1px solid rgba(232, 238, 242, 0.2);
  text-align: center;
}

.hintbar__tag {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* —— Breakpoints (mobile-first) —— */
@media (min-width: 640px) {
  .pillars {
    grid-template-columns: 1fr 1fr;
  }

  .systems,
  .pilot-grid,
  .ask-packages {
    grid-template-columns: 1fr 1fr;
  }

  .why-grid {
    grid-template-columns: 1fr 1fr;
  }

  .team-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .brand-sub {
    max-width: 28rem;
  }
}

@media (min-width: 768px) {
  .topbar {
    padding: 0 1rem;
    gap: 0.75rem;
  }

  .topbar__nav {
    display: flex;
  }

  .slide {
    padding: 1.35rem 1.5rem 1.5rem;
  }

  .slide--hero {
    padding: 0;
  }

  .hero {
    align-content: center;
    padding: clamp(2rem, 5vw, 4rem);
  }
}

@media (min-width: 1024px) {
  .slide__split {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 1.25rem;
    align-items: start;
  }

  .arch-layout {
    display: grid;
    grid-template-columns: 1.35fr 0.65fr;
    gap: 1rem;
    align-items: start;
  }

  .ask-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 1rem;
    align-items: start;
  }

  .phase-rail {
    grid-template-columns: repeat(4, 1fr);
  }

  .phase {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 379px) {
  body {
    font-size: 0.95rem;
  }

  .brand-sub {
    display: none;
  }

  .hintbar__keys {
    display: none;
  }
}

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

  .hero__bg {
    transform: none;
  }
}