/* Modernist — design-system tokens and component classes. This file is the source of truth for the system's look; retune it here and see readme.md. */
@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@400;600;800&display=swap');

:root {
  --color-bg: #f3f2f2;
  --color-surface: #eae9e9;
  --color-text: #201e1d;
  --color-accent: #ec3013;
  --color-accent-2: #e15b47;
  --color-divider: color-mix(in srgb, #201e1d 40%, transparent);

  /* Tonal ramps — generated in OKLCH on one shared lightness scale, so the
     same step of any role matches the others in visual value. */
  --color-neutral-100: #f8f4f4;
  --color-neutral-200: #eae7e7;
  --color-neutral-300: #d7d3d3;
  --color-neutral-400: #bab6b6;
  --color-neutral-500: #9b9797;
  --color-neutral-600: #7d7979;
  --color-neutral-700: #605d5d;
  --color-neutral-800: #444141;
  --color-neutral-900: #2d2b2b;

  --color-accent-100: #fff2ef;
  --color-accent-200: #ffe0d9;
  --color-accent-300: #ffc4b8;
  --color-accent-400: #ff9783;
  --color-accent-500: #ff563c;
  --color-accent-600: #dd2b0f;
  --color-accent-700: #ae1800;
  --color-accent-800: #7c1405;
  --color-accent-900: #4d170e;

  --color-accent-2-100: #fff2ef;
  --color-accent-2-200: #ffe0da;
  --color-accent-2-300: #ffc4b9;
  --color-accent-2-400: #ff9784;
  --color-accent-2-500: #ef6853;
  --color-accent-2-600: #c94b39;
  --color-accent-2-700: #9e3526;
  --color-accent-2-800: #71261b;
  --color-accent-2-900: #471d16;

  --font-heading: "Archivo", system-ui, sans-serif;
  --font-heading-weight: 800;
  --font-body: "Archivo", system-ui, sans-serif;

  --space-1: 4.0px;
  --space-2: 8.0px;
  --space-3: 12.0px;
  --space-4: 16.0px;
  --space-6: 24.0px;
  --space-8: 32.0px;

  --radius-sm: 0px;
  --radius-md: 0px;
  --radius-lg: 0px;

  /* Elevation — derived from the ground: soft ink-tinted shadows on a
     light theme, a hairline edge + ambient darkness on a dark one. */
  --shadow-sm: 0 1px 2px color-mix(in srgb, #2d2b2b 14%, transparent);
  --shadow-md: 0 3px 10px color-mix(in srgb, #2d2b2b 16%, transparent);
  --shadow-lg: 0 12px 32px color-mix(in srgb, #2d2b2b 22%, transparent);
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
}
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: var(--font-heading-weight); }

.grayscale{filter:grayscale(1) contrast(1.08)}

/* ══════════════════════════════════════════════════════════════════════════
   Components — built with the tokens above. Plain CSS
   on plain HTML: no JavaScript, no build step. Each class is documented in
   readme.md and demonstrated in foundations/ and components/.
   ══════════════════════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; font-size: 15px; line-height: 1.55; font-weight: 400; }
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  line-height: 1.12; letter-spacing: -0.015em; margin: 0 0 var(--space-2);
}
h1 { font-size: 42px; }
h2 { font-size: 32px; }
h3 { font-size: 25px; }
h4 { font-size: 20px; }
h5 { font-size: 16px; }
h6 { font-size: 13px; }
h6 { letter-spacing: 0.08em; text-transform: uppercase; }
p { margin: 0 0 var(--space-3); }
a { color: var(--color-accent); text-underline-offset: 3px; }
img { display: block; max-width: 100%; }
figure { margin: 0; }
figcaption {
  font-size: 11px; margin-top: var(--space-1);
  color: color-mix(in srgb, var(--color-text) 55%, transparent);
}
.text-muted { color: color-mix(in srgb, var(--color-text) 55%, transparent); }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
::selection { background: color-mix(in srgb, var(--color-accent) 30%, transparent); }

/* — rules — */
.hr {
  height: 2px; border: 0; margin: var(--space-4) 0;
  background: var(--color-divider);
}

/* — buttons — */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  cursor: pointer; text-decoration: none;
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 14px; line-height: 1.2; color: var(--color-text); /* matches the .input's 14px —
     the pair sits side by side in sign-up rows */
  background: transparent; border: 1px solid transparent;
  padding: var(--space-2) calc(var(--space-3) * 1.2);
  border-radius: var(--radius-md);
}
.btn svg { display: block; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { background: var(--color-accent); color: var(--color-bg); }
.btn-primary:hover { background: var(--color-accent-600); }
.btn-primary:active { background: var(--color-accent-700); }
.btn-secondary { border-color: var(--color-divider); }
.btn-secondary:hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); }
.btn-secondary:active { background: color-mix(in srgb, var(--color-text) 14%, transparent); }
.btn-ghost { color: var(--color-accent); padding-inline: var(--space-1); }
.btn-ghost:hover { background: color-mix(in srgb, var(--color-accent) 10%, transparent); }
.btn-ghost:active { background: color-mix(in srgb, var(--color-accent) 18%, transparent); }
.btn-icon { width: 36px; height: 36px; padding: 0; }
.btn-block { width: 100%; margin-top: var(--space-2); justify-content: flex-start; text-align: left; }

/* — forms — */
.field > label {
  display: block; font-size: 12px; margin-bottom: 5px;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
}
.input {
  width: 100%; min-height: 36px; padding: 6px 10px; font: inherit;
  font-size: 14px; color: var(--color-text); caret-color: var(--color-accent);
  background: var(--color-surface);
  border: 1px solid var(--color-divider); border-radius: var(--radius-md);
}
.input:hover { border-color: color-mix(in srgb, var(--color-text) 45%, transparent); }
.input:focus-visible { border-color: var(--color-accent); outline-offset: 0; }
textarea.input { min-height: 90px; resize: vertical; }
.radio { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: 14px; }
.radio input, .seg-opt input {
  position: absolute; opacity: 0; width: 0; height: 0; pointer-events: none;
}
.radio .dot {
  width: 16px; height: 16px; flex: none; border-radius: 50%;
  border: 1.5px solid var(--color-divider);
}
.radio:hover .dot { border-color: var(--color-accent); }
.radio input:checked + .dot {
  border-color: var(--color-accent); background: var(--color-accent);
  box-shadow: inset 0 0 0 4px var(--color-bg);
}
.radio input:focus-visible + .dot { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.seg {
  display: inline-flex; overflow: hidden;
  border: 1px solid var(--color-divider); border-radius: var(--radius-md);
}
.seg-opt {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 12px; font-size: 13px; cursor: pointer;
}
.seg-opt + .seg-opt { border-left: 1px solid var(--color-divider); }
.seg-opt:has(input:checked) { background: var(--color-accent); color: var(--color-bg); }
.seg-opt:not(:has(input:checked)):hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); }
.seg-opt:has(input:focus-visible) { outline: 2px solid var(--color-accent); outline-offset: -2px; }

/* — cards — */
.card {
  display: flex; flex-direction: column; gap: var(--space-2);
  padding: var(--space-3); border-radius: var(--radius-md); background: var(--color-surface);
}
.card-kicker { font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-accent); }
.card-title {
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 17px; line-height: 1.2;
}
.card-body { margin: 0; font-size: 13px; opacity: 0.8; flex: 1; }
/* 어두운 배경 카드: 본문·키커 색을 밝게 뒤집어 시인성 확보 */
.card-on-dark { color: var(--color-neutral-100); }
.card-on-dark .card-title { color: #fff; }
.card-on-dark .card-body { color: var(--color-neutral-100); opacity: 1; }
.card-on-dark .card-kicker { color: var(--color-accent-400); }
.card-on-dark .card-meta { color: color-mix(in srgb, var(--color-neutral-100) 70%, transparent); }
.card-meta {
  display: flex; align-items: center; gap: 6px; font-size: 11px;
  color: color-mix(in srgb, var(--color-text) 50%, transparent);
}
.elev-sm { box-shadow: var(--shadow-sm); }
.elev-md { box-shadow: var(--shadow-md); }
.elev-lg { box-shadow: var(--shadow-lg); }

/* — tags — */
.tag {
  display: inline-flex; align-items: center; font-size: 11px;
  letter-spacing: 0.02em; padding: 3px 10px;
  border-radius: calc(var(--radius-md) * 0.75);
}
.tag-accent { background: var(--color-accent-100); color: var(--color-accent-800); }
.tag-accent-2 { background: var(--color-accent-2-100); color: var(--color-accent-2-800); }
.tag-neutral { background: var(--color-neutral-100); color: var(--color-neutral-800); }
.tag-outline { border: 1px solid var(--color-accent); color: var(--color-accent); }

/* — navigation — */
.nav {
  display: flex; align-items: center; gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-bottom: 2px solid var(--color-divider);
}
.nav-brand {
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 18px; margin-right: auto;
}
.nav a { color: inherit; text-decoration: none; font-size: 14px; }
.nav a:hover, .nav a[aria-current='page'] { color: var(--color-accent); }

/* — tables — */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th {
  text-align: left; font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  color: color-mix(in srgb, var(--color-text) 60%, transparent);
  padding: var(--space-2); border-bottom: 2px solid var(--color-divider);
}
.table td {
  padding: var(--space-2);
  border-bottom: 1px solid var(--color-divider);
}
.table tbody tr:hover { background: color-mix(in srgb, var(--color-text) 4%, transparent); }

/* — dialog — */
.dialog-backdrop {
  position: fixed; inset: 0; display: grid; place-items: center;
  padding: var(--space-4);
  background: color-mix(in srgb, var(--color-neutral-900) 50%, transparent);
}
.dialog {
  width: min(440px, 100%); display: flex; flex-direction: column; gap: var(--space-3);
  padding: var(--space-4); border-radius: var(--radius-lg);
  background: var(--color-surface); box-shadow: var(--shadow-lg);
}
.dialog-title {
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 20px;
}
.dialog-body { font-size: 14px; opacity: 0.85; }
.dialog-actions { display: flex; justify-content: flex-end; gap: var(--space-2); margin-top: var(--space-2); }

/* ══════════════════════════════════════════════════════════════════════════
   Responsive — mobile / tablet / desktop.
   The page composes its layout with inline styles, so these overrides use
   !important to win the cascade. Breakpoints: 1024px (pad), 640px (mobile).
   ══════════════════════════════════════════════════════════════════════ */

/* — never let the page scroll sideways —
   Clip on <body> only. Setting overflow-x on <html> as well makes iOS Safari
   treat both as scroll containers, which breaks momentum scrolling. */
body { max-width: 100%; overflow-x: hidden; }
img, svg, video, iframe { max-width: 100%; }

/* — testimonial carousel —
   The quotes rotate every 4s and they differ in length, so the cards used to
   resize on each tick. That reflowed everything below them and changed the
   document height mid-scroll, which the browser answers by correcting the
   scroll offset — felt as a stutter anywhere on the page, not just here.
   Fixing the row height keeps the document a constant length. */
.testimonial-card {
  min-height: 260px;
  overflow: hidden;
}
.testimonial-card .card-body {
  overflow: hidden;
}
/* Don't let the browser re-anchor scrolling to this rotating block. */
.testimonials { overflow-anchor: none; }

@media (max-width: 640px) {
  .testimonial-card { min-height: 230px; }
}

/* — hero headline —
   Must always read as a single line. The width cap is dropped and the type
   scales with the viewport instead of wrapping; `nowrap` holds the line and
   the vw-based size keeps it inside the container at every width. The Korean
   headline is ~17 characters and the Vietnamese one ~46, so the size is tuned
   to the longer string via a per-language override below. */
.hero-title {
  white-space: nowrap;
  font-size: clamp(22px, 5.4vw, 76px);
  max-width: 100%;
}
/* Vietnamese runs far longer — shrink it further so it still fits one line. */
:lang(vi) .hero-title,
[data-lang="vi"] .hero-title {
  font-size: clamp(13px, 3.1vw, 44px);
}

/* Below the page's own 860px hamburger breakpoint the header holds just the
   brand and the ☰ button, so it can stay on one line. Keeping its height
   constant matters because it is position:sticky — a row that wraps mid-scroll
   resizes the header and jolts the document. Above 860px the desktop nav has
   six links and still needs to wrap, so this is scoped to mobile only. */
@media (max-width: 859px) {
  .nav { flex-wrap: nowrap !important; }
}

/* Centre every max-width section container. The page sets these widths
   inline but mostly omits `margin: 0 auto`, which pins the content to the
   left and leaves a large gap on the right. Centring here keeps one
   consistent measure across all screens without touching the markup. */
[style*="max-width:1160px"], [style*="max-width: 1160px"],
[style*="max-width:880px"],  [style*="max-width: 880px"],
[style*="max-width:820px"],  [style*="max-width: 820px"],
[style*="max-width:760px"],  [style*="max-width: 760px"],
[style*="max-width:720px"],  [style*="max-width: 720px"],
[style*="max-width:680px"],  [style*="max-width: 680px"],
[style*="max-width:640px"],  [style*="max-width: 640px"],
[style*="max-width:620px"],  [style*="max-width: 620px"],
[style*="max-width:600px"],  [style*="max-width: 600px"],
[style*="max-width:480px"],  [style*="max-width: 480px"] {
  margin-left: auto !important;
  margin-right: auto !important;
}

/* Wide content (tables, embeds) scrolls inside its own box instead of
   stretching the page. */
.table { min-width: 520px; }
.table-scroll { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* ── Tablet / pad ─────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .nav { gap: var(--space-3) !important; padding: var(--space-3) var(--space-4) !important; }
  .nav-brand { font-size: 16px !important; }
  .nav a { font-size: 13px !important; }
}

/* ── Mobile ───────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  body { font-size: 14px; }
  h1 { font-size: 32px; }
  h2 { font-size: 25px; }
  h3 { font-size: 20px; }

  /* Nav is handled by the page itself: below 860px it swaps in a hamburger
     menu (isMobile). Do NOT add wrapping or full-width children here — the
     header is position:sticky, so anything that changes its height mid-scroll
     shifts the whole document and makes scrolling stutter. Type scale only. */
  .nav-brand { font-size: 15px !important; }
  .nav-brand img { height: 24px !important; }
  .nav a { font-size: 13px !important; }
  .nav .btn { font-size: 13px !important; }

  /* Two-column grids collapse to one. */
  [style*="grid-template-columns:1fr 1fr"],
  [style*="grid-template-columns: 1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }
  /* The one asymmetric split (content + sidebar) stacks too. */
  [style*="minmax(min(480px,100%),1fr)"] {
    grid-template-columns: 1fr !important;
  }

  /* Tighten the generous desktop section padding (block only — the inline
     axis is already handled by the container's max-width). */
  [style*="padding:var(--space-8) var(--space-6)"] {
    padding-left: var(--space-4) !important;
    padding-right: var(--space-4) !important;
  }

  /* Touch targets: keep buttons comfortably tappable. */
  .btn { min-height: 40px; }
  .btn-primary, .btn-secondary { padding: 10px 16px !important; }

  /* Tables scroll rather than squeeze. */
  .table { font-size: 13px; }
}