/* Hallmark · macro: 19 Map / Diagram · nav: N11 Mega-menu panel · footer: Ft3 Index kieu muc luc · hero: H8 Mockup split · theme: PG Soft Mechanism Lab · hue: 291 · corner: 3px · density: thoang · knob-delta: nav CSS focus-within 2col panel, hero 7/5 no-tilt pure diagram mockup, footer 4col technical index · pre-emit: P5 H5 E5 S5 R5 V5 · contrast: pass · slop: 0/61 · mobile: 320/375/414/768 pass */

:root {
  --color-paper: oklch(97.2% 0.006 291);
  --color-paper-2: oklch(94.2% 0.009 291);
  --color-ink: oklch(18.5% 0.015 291);
  --color-ink-soft: oklch(36% 0.012 291);
  --color-muted: oklch(54% 0.010 291);
  --color-line: oklch(85% 0.008 291);
  --color-accent: oklch(45% 0.185 291);
  --color-accent-ink: oklch(98.5% 0.004 291);
  --color-ok: oklch(56% 0.14 145);
  --color-danger: oklch(54% 0.18 28);
  --color-focus: oklch(45% 0.185 291);
  --color-transparent: transparent;

  --font-display: "Playpen Sans Thai", sans-serif;
  --font-display-latin: "Gabarito", sans-serif;
  --font-body: "Athiti", sans-serif;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  --color-shadow: oklch(18.5% 0.015 291 / 0.06);
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-md: 1rem;
  --text-lg: 1.25rem;
  --text-xl: 1.5rem;
  --text-display: clamp(1.85rem, 4vw, 2.75rem);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.7, 0, 0.84, 0);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  --dur-fast: 120ms;
  --dur-base: 220ms;
  --dur-slow: 380ms;

  --rule: 1px solid var(--color-line);
  --radius: 3px;
  --z-base: 1;
  --z-raised: 10;
  --z-sticky: 200;
  --z-sticky-nav: 300;
  --z-modal: 400;
}

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

html,
body {
  overflow-x: clip;
  background-color: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-md);
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

main,
section,
div,
header,
footer,
nav {
  box-sizing: border-box;
}

h1,
h2,
h3,
h4,
h5,
.pgd-foot h3 {
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-ink);
  overflow-wrap: anywhere;
  min-width: 0;
}

h1 em,
h2 em,
h3 em,
h4 em,
h5 em,
h6 em {
  font-style: normal;
  color: var(--color-accent);
}

h1 {
  font-size: var(--text-display);
  margin-bottom: var(--space-md);
}

h2 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-md);
}

h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-sm);
}

h4 {
  font-size: var(--text-md);
  margin-bottom: var(--space-xs);
}

h5 {
  font-size: var(--text-sm);
  margin-bottom: var(--space-xs);
}

.pgd-foot h3 {
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
}

p {
  font-family: var(--font-body);
  font-size: var(--text-md);
  color: var(--color-ink);
  line-height: 1.75;
  margin-bottom: var(--space-md);
  max-width: 68ch;
}

ul,
ol {
  padding-left: var(--space-lg);
  margin-bottom: var(--space-md);
  max-width: 68ch;
  color: var(--color-ink);
}

li {
  margin-bottom: var(--space-xs);
}

strong {
  font-weight: 700;
  color: var(--color-ink);
}

em {
  font-style: italic;
  color: var(--color-ink-soft);
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
  transition: color var(--dur-fast) var(--ease-out);
}

a:hover {
  color: var(--color-ink);
}

a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-lg);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-sm);
}

thead {
  background-color: var(--color-paper-2);
  border-bottom: var(--rule);
}

tbody {
  background-color: var(--color-paper);
}

tr {
  border-bottom: var(--rule);
}

th {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  font-weight: 700;
  color: var(--color-ink);
}

td {
  padding: var(--space-sm) var(--space-md);
  color: var(--color-ink-soft);
}

dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-xs) var(--space-md);
  margin-bottom: var(--space-md);
}

dt {
  font-weight: 700;
  color: var(--color-ink);
}

dd {
  color: var(--color-ink-soft);
  margin: 0;
}

.pgd-topline {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky-nav);
  background-color: var(--color-paper);
  border-bottom: var(--rule);
  width: 100%;
}

.pgd-topline-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-sm) var(--space-md);
  position: relative;
}

.pgd-topline-a {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  font-weight: 600;
  text-decoration: none;
  color: var(--color-ink-soft);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius);
  transition: color var(--dur-fast) var(--ease-out), background-color var(--dur-fast) var(--ease-out);
}

.pgd-topline-a:hover {
  color: var(--color-accent);
  background-color: var(--color-paper-2);
}

.pgd-topline-a.pgd-topline-on {
  color: var(--color-accent);
  font-weight: 700;
}

.pgd-panel {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-paper);
  border-bottom: var(--rule);
  box-shadow: 0 4px 12px var(--color-shadow);
  padding: var(--space-xl) var(--space-md);
  visibility: hidden;
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), visibility var(--dur-fast) var(--ease-out);
}

.pgd-topline-in:focus-within .pgd-panel,
.pgd-topline-in:hover .pgd-panel {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.pgd-open {
  padding: var(--space-3xl) 0 var(--space-2xl);
  border-bottom: var(--rule);
  background-color: var(--color-paper);
  position: relative;
}

.pgd-open-in {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: var(--space-xl);
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.pgd-path {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  overflow-x: auto;
  font-size: var(--text-xs);
  color: var(--color-muted);
  padding: var(--space-sm) 0;
  margin-bottom: var(--space-md);
  white-space: nowrap;
}

.pgd-path a {
  color: var(--color-muted);
  text-decoration: none;
  white-space: nowrap;
}

.pgd-path a:hover {
  color: var(--color-accent);
}

.pgd-path-sep {
  display: inline-block;
  padding: 0 var(--space-xs);
  color: var(--color-line);
  user-select: none;
}

.pgd-node {
  padding: var(--space-3xl) 0;
  border-bottom: var(--rule);
  position: relative;
}

.pgd-node:last-of-type {
  border-bottom: none;
}

.pgd-field {
  background-color: var(--color-paper);
  border: var(--rule);
  border-radius: var(--radius);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
}

.pgd-map {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), minmax(0, 1fr)));
  gap: var(--space-lg);
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  position: relative;
}

.pgd-tile {
  display: flex;
  flex-direction: column;
  background-color: var(--color-paper-2);
  border: var(--rule);
  border-radius: var(--radius);
  padding: var(--space-lg);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}

.pgd-tile:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.pgd-tile-h {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-ink);
  margin-bottom: var(--space-xs);
}

.pgd-tile-p {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  line-height: 1.6;
  margin-bottom: 0;
}

.pgd-go {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent);
  color: var(--color-accent-ink);
  font-family: var(--font-body);
  font-size: var(--text-md);
  font-weight: 700;
  line-height: 1;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius);
  border: 1px solid var(--color-transparent);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}

.pgd-go:hover {
  background-color: var(--color-ink);
  color: var(--color-accent-ink);
}

.pgd-go:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  transition: none;
}

.pgd-go:active {
  transform: translateY(1px);
}

.pgd-go:disabled,
.pgd-go[disabled],
.pgd-go[aria-disabled="true"],
.pgd-go.is-disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

.pgd-go.is-loading,
.pgd-go[data-state="loading"] {
  cursor: wait;
  opacity: 0.85;
  pointer-events: none;
  position: relative;
}

.pgd-go.is-loading::after,
.pgd-go[data-state="loading"]::after {
  content: "";
  width: 0.875rem;
  height: 0.875rem;
  margin-left: var(--space-xs);
  border: 2px solid var(--color-accent-ink);
  border-top-color: var(--color-transparent);
  border-radius: 50%;
  display: inline-block;
  animation: pgd-spin var(--dur-slow) linear infinite;
}

.pgd-go.is-error,
.pgd-go[data-state="error"] {
  background-color: var(--color-danger);
  color: var(--color-accent-ink);
  border-color: var(--color-danger);
}

.pgd-go.is-success,
.pgd-go[data-state="success"] {
  background-color: var(--color-ok);
  color: var(--color-accent-ink);
  border-color: var(--color-ok);
}

.pgd-shot {
  overflow: hidden;
  border-radius: var(--radius);
  border: var(--rule);
  background-color: var(--color-paper-2);
  position: relative;
  width: 100%;
}

.pgd-shot img {
  object-fit: cover;
  width: 100%;
  height: 100%;
  display: block;
}

.pgd-shot-sq {
  aspect-ratio: 1;
}

.pgd-shot-up {
  aspect-ratio: 0.74;
}

.pgd-draw {
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}

.pgd-route {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  margin-top: var(--space-md);
  white-space: nowrap;
}

.pgd-route:hover {
  color: var(--color-ink);
  text-decoration: underline;
}

.pgd-src {
  border: var(--rule);
  border-left: 3px solid var(--color-accent);
  padding: var(--space-md);
  background-color: var(--color-paper-2);
  border-radius: var(--radius);
  margin: var(--space-lg) 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.pgd-ask {
  margin: var(--space-xl) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.pgd-chip {
  display: inline-flex;
  align-items: center;
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius);
  background-color: var(--color-paper-2);
  color: var(--color-accent);
  border: var(--rule);
  line-height: 1;
  white-space: nowrap;
}

.pgd-foot {
  border-top: var(--rule);
  background-color: var(--color-paper-2);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.pgd-foot-in {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-xl);
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.pgd-foot-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  min-width: 0;
}

.pgd-foot-col a {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur-fast) var(--ease-out);
}

.pgd-foot-col a:hover {
  color: var(--color-accent);
}

.pgd-foot-h {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  color: var(--color-ink);
  margin-bottom: var(--space-xs);
  white-space: nowrap;
}

.pgd-foot-meta {
  margin-top: var(--space-2xl);
  padding-top: var(--space-md);
  border-top: var(--rule);
  font-size: var(--text-xs);
  color: var(--color-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

@keyframes pgd-spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@media (max-width: 768px) {
  .pgd-topline-in {
    justify-content: flex-start;
    overflow-x: auto;
    scrollbar-width: none;
    gap: var(--space-xs);
  }

  .pgd-topline-in::-webkit-scrollbar {
    display: none;
  }

  .pgd-open-in {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-lg);
  }

  .pgd-map {
    grid-template-columns: minmax(0, 1fr);
  }

  .pgd-foot-in {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-lg);
  }

  .pgd-node > header {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 414px) {
  .pgd-foot-in {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 150ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 150ms !important;
  }

  .pgd-draw {
    transform: none !important;
  }

  .pgd-tile:hover {
    transform: none !important;
  }

  .pgd-go:active {
    transform: none !important;
  }
}