:root {
  --bg: #ffffff;
  --bg-muted: #f5f7fb;
  --surface: #ffffff;
  --text: #111827;
  --text-muted: #5b6475;
  --border: #e3e7ef;
  --primary: #3963c1;
  --primary-strong: #2c4f9e;
  --primary-soft: #e8eefb;
  --dark: #111827;
  --radius: 12px;
  --shadow: 0 1px 2px rgb(16 24 40 / 6%), 0 12px 32px rgb(16 24 40 / 10%);
  --font: 'IBM Plex Sans', 'IBM Plex Sans Thai', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116;
    --bg-muted: #141922;
    --surface: #181e28;
    --text: #e8ebf1;
    --text-muted: #9aa3b5;
    --border: #262e3b;
    --primary: #7aa2f7;
    --primary-strong: #9bbaf9;
    --primary-soft: #1d2a45;
    --dark: #e8ebf1;
    --shadow: 0 1px 2px rgb(0 0 0 / 40%), 0 12px 32px rgb(0 0 0 / 45%);
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

.wrap {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px;
}

@media (min-width: 720px) {
  .wrap {
    padding: 0 24px;
  }
}

/* --- Nav --- */

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 60px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.nav-links {
  display: none;
  gap: 20px;
  font-size: 14px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

@media (min-width: 900px) {
  .nav-links {
    display: flex;
  }
}

@media (max-width: 520px) {
  .brand span {
    display: none;
  }
}

.lang {
  height: 32px;
  padding: 0 10px;
  font: inherit;
  font-size: 13px;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
}

.lang:hover {
  color: var(--text);
}

/* --- Buttons --- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 44px;
  padding: 0 18px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  border-radius: 10px;
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s;
}

.btn-sm {
  height: 32px;
  padding: 0 12px;
  font-size: 13px;
  border-radius: 8px;
}

.btn-primary {
  color: #fff;
  background: #3963c1;
}

.btn-primary:hover {
  background: #2c4f9e;
}

.btn-dark {
  color: var(--bg);
  background: var(--dark);
}

.btn-ghost {
  border-color: var(--border);
  background: var(--surface);
}

.btn-ghost:hover {
  border-color: var(--text-muted);
}

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

/* --- Hero --- */

.hero {
  padding-top: 64px;
  text-align: center;
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--primary);
}

h1 {
  max-width: 820px;
  margin: 0 auto;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.lead {
  max-width: 680px;
  margin: 20px auto 0;
  font-size: 18px;
  color: var(--text-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
}

/* Room between the call to action and the screenshot, so the buttons read as their own row. */
.frame.hero-shot {
  margin-top: clamp(56px, 8vw, 96px);
}

/* --- Screenshot frame --- */

.frame {
  margin: 0;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.frame-bar {
  display: flex;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-muted);
}

.frame-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
}

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

.band {
  margin-top: 64px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  padding-top: 28px;
  padding-bottom: 28px;
}

@media (min-width: 800px) {
  .stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stats div {
  display: flex;
  flex-direction: column;
}

.stats strong {
  font-family: var(--mono);
  font-size: 20px;
}

.stats span {
  font-size: 14px;
  color: var(--text-muted);
}

/* --- Sections --- */

.section {
  padding-top: 88px;
  padding-bottom: 88px;
}

.section-muted {
  background: var(--bg-muted);
}

h2 {
  margin: 0;
  font-size: clamp(26px, 3.4vw, 34px);
  letter-spacing: -0.01em;
}

.section-lead {
  max-width: 640px;
  margin: 10px 0 36px;
  color: var(--text-muted);
}

.features {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .features {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1000px) {
  .features {
    grid-template-columns: repeat(4, 1fr);
  }
}

.features article {
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.features h3 {
  margin: 14px 0 6px;
  font-size: 16px;
}

.features p {
  margin: 0;
  font-size: 14px;
  color: var(--text-muted);
}

.icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 10px;
}

.icon svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* --- Screenshot tabs --- */

.tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.tab {
  flex: none;
  height: 36px;
  padding: 0 14px;
  font: inherit;
  font-size: 14px;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
}

.tab[aria-selected='true'] {
  color: #fff;
  background: #3963c1;
  border-color: #3963c1;
}

.shot-caption {
  max-width: 720px;
  margin: 16px 0 0;
  color: var(--text-muted);
}

/* --- Flow --- */

.flow {
  display: grid;
  gap: 16px;
  margin: 36px 0 0;
  padding: 0;
  list-style: none;
  grid-template-columns: 1fr;
}

@media (min-width: 800px) {
  .flow {
    grid-template-columns: repeat(4, 1fr);
  }
}

.flow li {
  padding: 22px;
  border-top: 3px solid var(--primary);
  background: var(--bg-muted);
  border-radius: 0 0 var(--radius) var(--radius);
}

.flow p {
  margin: 6px 0 0;
  font-size: 14px;
  color: var(--text-muted);
}

.step {
  display: block;
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--primary);
}

/* --- Quick start --- */

.two-col {
  display: grid;
  gap: 40px;
  align-items: start;
}

@media (min-width: 900px) {
  .two-col {
    grid-template-columns: 5fr 7fr;
  }
}

.two-col p {
  color: var(--text-muted);
}

.checks {
  margin: 20px 0 28px;
  padding: 0;
  list-style: none;
}

.checks li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 10px;
  font-size: 15px;
}

.checks li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 7px;
  width: 11px;
  height: 6px;
  border-left: 2px solid var(--primary);
  border-bottom: 2px solid var(--primary);
  transform: rotate(-45deg);
}

.code {
  min-width: 0;
  overflow: hidden;
  background: #0f1420;
  color: #dbe2f0;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  font-size: 13px;
  color: #9aa6bd;
  border-bottom: 1px solid #1f2736;
}

.code-head:not(:first-child) {
  border-top: 1px solid #1f2736;
}

.copy {
  padding: 2px 10px;
  font: inherit;
  font-size: 12px;
  color: #c9d3e6;
  background: transparent;
  border: 1px solid #2c3648;
  border-radius: 6px;
  cursor: pointer;
}

.copy:hover {
  border-color: #56627a;
}

pre {
  margin: 0;
  padding: 16px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.7;
}

/* --- Stack, CTA, footer --- */

.stack {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.stack li {
  padding: 6px 14px;
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
}

.cta {
  padding-bottom: 96px;
  text-align: center;
}

.cta p {
  color: var(--text-muted);
}

.footer {
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-muted);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
  padding-top: 24px;
  padding-bottom: 24px;
}

.footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer a {
  text-decoration: none;
}

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

html[lang='th'] h1 {
  line-height: 1.3;
}