:root {
  color-scheme: dark;
  --bg: #1b201a;
  --grid: rgba(240, 223, 188, 0.045);
  --panel: #242a23;
  --panel-2: #2c332b;
  --ink: #f3ecdf;
  --muted: #bbb4a7;
  --line: rgba(243, 236, 223, 0.16);
  --paper: #f6efdf;
  --paper-ink: #26302b;
  --paper-focus: #53296b;
  --strawberry: #e2a4b0;
  --matcha: #9db28b;
  --red: #c96a5e;
  --shadow: rgba(0, 0, 0, 0.42);
  --mono: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: "IBM Plex Sans KR", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html {
  margin: 0;
  background: var(--bg);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  min-width: 280px;
  min-height: 100vh;
  min-height: 100svh;
  margin: 0;
  color: var(--ink);
  background-color: var(--bg);
  background-image:
    repeating-linear-gradient(0deg, transparent 0 23px, var(--grid) 23px 24px),
    repeating-linear-gradient(90deg, transparent 0 23px, var(--grid) 23px 24px);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

button, input { font: inherit; }
button, a { touch-action: manipulation; }
a { color: var(--strawberry); text-underline-offset: 3px; }
a:hover { color: var(--ink); }

:focus-visible {
  outline: 3px solid var(--strawberry);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 8px;
  left: 8px;
  padding: 9px 12px;
  color: var(--bg);
  background: var(--ink);
  border-radius: 5px;
  font: 700 12px/1.2 var(--mono);
  transform: translateY(-150%);
}
.skip-link:focus { transform: none; }

.masthead {
  display: flex;
  max-width: 1160px;
  margin: 0 auto;
  padding: max(22px, env(safe-area-inset-top)) max(24px, env(safe-area-inset-right)) 18px max(24px, env(safe-area-inset-left));
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  display: inline-flex;
  flex-direction: column;
  gap: 2px;
  color: var(--ink);
  text-decoration: none;
}
.wordmark-main { font-size: 19px; font-weight: 760; letter-spacing: -0.4px; }
.wordmark-main span { color: var(--strawberry); }
.wordmark-ko { color: var(--muted); font: 10px/1.3 var(--mono); letter-spacing: 1.5px; }

.house-links { display: flex; gap: 16px; flex-wrap: wrap; justify-content: flex-end; }
.house-links a,
footer a,
footer span {
  font: 10px/1.4 var(--mono);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.page {
  width: min(100%, 1110px);
  margin: 0 auto;
  padding: 64px max(24px, env(safe-area-inset-right)) 76px max(24px, env(safe-area-inset-left));
}

.intro { max-width: 760px; margin-bottom: 32px; }
.eyebrow,
.label {
  margin: 0;
  color: var(--matcha);
  font: 700 10px/1.5 var(--mono);
  letter-spacing: 2px;
}
.intro h1 {
  max-width: 680px;
  margin: 12px 0 12px;
  font-size: clamp(35px, 6.4vw, 62px);
  line-height: 1.02;
  letter-spacing: -2.3px;
  text-wrap: balance;
}
.lede {
  max-width: 66ch;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.72;
  text-wrap: pretty;
}

.live-state {
  display: inline-flex;
  min-height: 30px;
  margin-top: 20px;
  padding: 7px 10px;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 5px;
  font: 10px/1.4 var(--mono);
  letter-spacing: 0.7px;
}
.live-dot {
  width: 8px;
  height: 8px;
  flex: 0 0 8px;
  background: var(--muted);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(187, 180, 167, 0.08);
}
.live-state[data-state="live"] .live-dot {
  background: var(--matcha);
  box-shadow: 0 0 0 3px rgba(157, 178, 139, 0.12), 0 0 12px rgba(157, 178, 139, 0.45);
}
.live-state[data-state="working"] .live-dot { background: #efd9a7; }
.live-state[data-state="error"] .live-dot { background: var(--red); }

.board-card,
.tray-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 15px;
  box-shadow: 0 18px 38px -24px var(--shadow);
}
.board-card { padding: 24px; }
.tray-card { margin-top: 24px; padding: 24px; }

.board-heading,
.tray-heading {
  display: flex;
  margin-bottom: 16px;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
}
.board-heading h2,
.tray-heading h2 {
  margin: 3px 0 0;
  font-size: clamp(22px, 4vw, 31px);
  line-height: 1.15;
  letter-spacing: -0.8px;
}
.board-heading h2 span { color: var(--strawberry); font-size: 0.65em; font-weight: 500; }
.board-count,
.tray-heading > p {
  margin: 0;
  color: var(--muted);
  font: 10px/1.4 var(--mono);
  letter-spacing: 1px;
  text-align: right;
}

.board {
  position: relative;
  min-height: clamp(390px, 58vw, 610px);
  overflow: hidden;
  color: var(--paper-ink);
  background-color: var(--paper);
  background-image:
    linear-gradient(90deg, transparent 52px, rgba(201, 106, 94, 0.32) 52px 53px, transparent 53px),
    repeating-linear-gradient(180deg, transparent 0 29px, rgba(38, 48, 43, 0.095) 29px 30px);
  border: 1px solid rgba(38, 48, 43, 0.22);
  border-radius: 7px;
  box-shadow: inset 0 0 38px rgba(38, 48, 43, 0.1), 0 7px 18px -13px #000;
  isolation: isolate;
}
.board::before {
  content: "SHARED · LIVE PAPER";
  position: absolute;
  z-index: 20;
  top: 11px;
  right: 11px;
  padding: 4px 7px;
  color: rgba(38, 48, 43, 0.76);
  background: rgba(246, 239, 223, 0.86);
  border: 1px solid rgba(38, 48, 43, 0.2);
  border-radius: 3px;
  font: 700 7px/1 var(--mono);
  letter-spacing: 0.9px;
  pointer-events: none;
}
.board::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background: radial-gradient(circle at 22% 18%, rgba(255, 255, 255, 0.42), transparent 36%);
  pointer-events: none;
}
.board-empty {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(76%, 380px);
  margin: 0;
  color: rgba(38, 48, 43, 0.46);
  font: 10px/1.8 var(--mono);
  letter-spacing: 1.1px;
  text-align: center;
  transform: translate(-50%, -50%) rotate(-1deg);
  pointer-events: none;
}

.board-item {
  position: absolute;
  z-index: 2;
  display: block;
  margin: 0;
  padding: 0;
  color: var(--paper-ink);
  background: transparent;
  border: 0;
  cursor: grab;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  transform-origin: center;
}
.board-item:hover { filter: drop-shadow(0 5px 5px rgba(38, 48, 43, 0.22)); }
.board-item:focus-visible {
  outline: 4px solid var(--paper-focus);
  outline-offset: 4px;
}
.board-item[aria-pressed="true"] {
  z-index: 12;
  filter: drop-shadow(0 6px 6px rgba(38, 48, 43, 0.3));
}
.board-item[aria-pressed="true"]::after {
  content: "";
  position: absolute;
  inset: -7px;
  border: 2px dashed #9f443e;
  border-radius: 7px;
  pointer-events: none;
}
.board-item[data-dragging="true"] { z-index: 15; cursor: grabbing; }
.board-item--emoji { font-size: 34px; line-height: 1; }
.board-item--stamp {
  padding: 4px 9px;
  color: rgba(143, 59, 53, 0.92);
  background: rgba(255, 253, 250, 0.5);
  border: 1.5px solid rgba(143, 59, 53, 0.72);
  border-radius: 4px;
  font: 700 10px/1.2 var(--mono);
  letter-spacing: 0.9px;
  white-space: nowrap;
}
.board-item--washi {
  width: 112px;
  height: 23px;
  border-radius: 2px;
  box-shadow: 0 2px 5px rgba(38, 48, 43, 0.2);
  opacity: 0.94;
}
.board-item--image img {
  display: block;
  width: auto;
  max-width: 92px;
  height: auto;
  max-height: 92px;
  object-fit: contain;
  filter: drop-shadow(0 4px 5px rgba(38, 48, 43, 0.34));
  pointer-events: none;
}

.washi--straw {
  background: repeating-linear-gradient(45deg, #edb2c0 0 8px, #f7efe2 8px 16px);
}
.washi--matcha {
  background-color: #dceacb;
  background-image: radial-gradient(rgba(95, 112, 80, 0.7) 2px, transparent 2.6px);
  background-size: 12px 12px;
}
.washi--grid {
  background-color: #f3eee2;
  background-image:
    linear-gradient(rgba(90, 95, 85, 0.3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90, 95, 85, 0.3) 1px, transparent 1px);
  background-size: 11px 11px;
}
.washi--milk { background: repeating-linear-gradient(90deg, #f7efe2 0 13px, #edb2c0 13px 14px); }
.washi--gold { background: linear-gradient(105deg, #c7a660, #f0d99a 45%, #b58d42); }

.selection-bar {
  display: flex;
  min-height: 46px;
  padding: 10px 2px 0;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px dashed var(--line);
}
.selection-bar p,
.board-help {
  margin: 0;
  color: var(--muted);
  font: 9.5px/1.55 var(--mono);
  letter-spacing: 0.45px;
}
.board-help { padding-top: 10px; }

.text-button,
.upload-button {
  min-height: 40px;
  border-radius: 6px;
  cursor: pointer;
  font: 700 10px/1.3 var(--mono);
  letter-spacing: 0.8px;
}
.text-button {
  flex: 0 0 auto;
  padding: 7px 11px;
  color: var(--strawberry);
  background: transparent;
  border: 1px solid var(--line);
}
.text-button:hover:not(:disabled) { color: var(--ink); border-color: var(--strawberry); }
.text-button.danger:hover:not(:disabled) { color: #ffd6d0; border-color: var(--red); }
button:disabled { cursor: not-allowed; opacity: 0.46; }

.tray-heading { align-items: center; }
.tray-group { padding: 18px 0; border-top: 1px dashed var(--line); }
.tray-group h3,
.upload-press legend {
  margin: 0 0 11px;
  padding: 0;
  color: var(--muted);
  font: 700 9px/1.4 var(--mono);
  letter-spacing: 1.3px;
}
.tray-items { display: flex; flex-wrap: wrap; gap: 8px; }
.tray-item {
  display: inline-flex;
  min-width: 44px;
  min-height: 44px;
  padding: 6px 9px;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 7px;
  cursor: pointer;
  transition: border-color 150ms ease, transform 150ms ease;
}
.tray-item:hover { border-color: var(--strawberry); transform: translateY(-2px); }
.tray-item--emoji { font-size: 23px; }
.tray-item--stamp { color: var(--strawberry); font: 700 9px/1.25 var(--mono); letter-spacing: 0.7px; }
.tray-item--washi { padding: 9px; }
.tray-item--washi span { display: block; width: 72px; height: 15px; border-radius: 2px; }

.upload-press {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(220px, 0.9fr) auto;
  margin: 18px 0 0;
  padding: 18px;
  align-items: center;
  gap: 16px 22px;
  background: var(--panel-2);
  border: 1px dashed var(--strawberry);
  border-radius: 9px;
}
.upload-press legend { margin: 0; padding: 0 7px; color: var(--strawberry); }
.upload-copy { display: flex; min-width: 0; flex-direction: column; gap: 5px; }
.upload-copy strong,
.cutout-option strong { font: 700 9px/1.4 var(--mono); letter-spacing: 0.8px; }
.upload-copy span,
.cutout-option small { color: var(--muted); font: 10px/1.5 var(--sans); }
.cutout-option {
  display: flex;
  min-width: 0;
  align-items: flex-start;
  gap: 9px;
  cursor: pointer;
}
.cutout-option input { width: 17px; height: 17px; margin: 1px 0 0; accent-color: var(--matcha); }
.cutout-option span { display: flex; min-width: 0; flex-direction: column; gap: 2px; }
.upload-button {
  display: inline-flex;
  min-width: 150px;
  padding: 9px 14px;
  align-items: center;
  justify-content: center;
  color: #182016;
  background: var(--matcha);
  border: 0;
  text-decoration: none;
}
.upload-button:hover:not(:disabled) { color: #182016; background: #b1c79e; }

.house-note {
  display: flex;
  max-width: 760px;
  margin: 24px auto 0;
  padding: 14px 16px;
  align-items: flex-start;
  gap: 12px;
  color: var(--muted);
  background: rgba(36, 42, 35, 0.74);
  border-left: 3px solid var(--strawberry);
  border-radius: 0 6px 6px 0;
}
.house-note > span { color: var(--strawberry); }
.house-note p { margin: 0; font: 10px/1.65 var(--mono); letter-spacing: 0.35px; }
.house-note strong { color: var(--ink); }

footer {
  display: flex;
  max-width: 1110px;
  margin: 0 auto;
  padding: 24px max(24px, env(safe-area-inset-right)) max(30px, env(safe-area-inset-bottom)) max(24px, env(safe-area-inset-left));
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.noscript {
  position: fixed;
  inset: auto 12px 12px;
  z-index: 100;
  padding: 12px;
  color: var(--ink);
  background: var(--red);
  border-radius: 6px;
  text-align: center;
  font: 700 11px/1.4 var(--mono);
}

.error-page { display: grid; place-items: center; padding: 24px; }
.error-card {
  width: min(100%, 560px);
  padding: 36px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 18px 38px -24px var(--shadow);
}
.error-card h1 { margin: 10px 0; font-size: clamp(32px, 7vw, 52px); letter-spacing: -1.5px; }
.error-card p:not(.eyebrow) { margin: 0 0 24px; color: var(--muted); }

@media (max-width: 760px) {
  .masthead { align-items: flex-start; flex-direction: column; }
  .house-links { justify-content: flex-start; }
  .page { padding-top: 46px; }
  .intro h1 { letter-spacing: -1.4px; }
  .board-card, .tray-card { padding: 17px; border-radius: 12px; }
  .board { min-height: clamp(390px, 118vw, 540px); }
  .upload-press { grid-template-columns: minmax(0, 1fr); align-items: stretch; }
  .upload-button { width: 100%; min-height: 44px; }
}

@media (max-width: 520px) {
  .masthead,
  .page,
  footer {
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }
  .house-links { width: 100%; justify-content: space-between; gap: 8px; }
  .page { padding-top: 38px; padding-bottom: 56px; }
  .board-heading,
  .tray-heading { align-items: flex-start; flex-direction: column; gap: 8px; }
  .board-count,
  .tray-heading > p { text-align: left; }
  .board { min-height: 430px; }
  .board::before { font-size: 6.5px; }
  .selection-bar { align-items: stretch; flex-direction: column; padding-top: 12px; padding-bottom: 12px; }
  .text-button { width: 100%; min-height: 44px; }
  .board-help { padding-top: 0; }
  .tray-item { min-width: 46px; min-height: 46px; }
  .tray-item--washi span { width: 62px; }
  .house-note { margin-top: 18px; }
  footer { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
  .tray-item:hover { transform: none; }
}

@media (forced-colors: active) {
  .board-item[aria-pressed="true"]::after { border-color: Highlight; }
  .live-dot { forced-color-adjust: none; }
}