:root {
  --bg: #ffffff;
  --bg-elev: #ffffff;
  --bg-elev-2: #f3f4f6;
  --bg-elev-3: #eaecef;
  --border: #e5e7eb;
  --text: #16181d;
  --text-dim: #6b7078;
  --gold: #e8b23c;
  --gold-light: #f7d774;
  --gold-deep: #b8791e;
  --navy: #16264f;
  --navy-deep: #0d1730;
  --navy-accent: #16264f;
  --danger: #d64545;
  --danger-bg: #fdecec;
  --success: #2f9e5c;
  --success-bg: #e9f9ef;
  --radius: 16px;
  --serif: 'Noto Serif KR', 'Noto Serif', Georgia, serif;
  --sans: 'Noto Sans KR', -apple-system, 'Malgun Gothic', sans-serif;
  font-size: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  -webkit-text-size-adjust: 100%;
}

.app { min-height: 100vh; display: flex; flex-direction: column; background: var(--bg); }

/* ---------- topbar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  z-index: 10;
  flex-wrap: wrap;
  gap: 12px;
}
@media (max-width: 640px) { .topbar { padding: 12px 16px; } }

.brand { display: flex; align-items: center; gap: 10px; cursor: pointer; }
.brand-mark { display: block; width: 32px; height: 32px; }
.brand-name {
  font-weight: 900; font-size: 1.18rem; letter-spacing: -0.01em; color: var(--navy);
}

.topnav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav-btn {
  background: transparent; border: 1px solid transparent; color: var(--text-dim);
  padding: 9px 14px; border-radius: 999px; font-size: 0.88rem; font-weight: 600;
  cursor: pointer; transition: all .15s ease;
  font-family: inherit; white-space: nowrap;
}
.nav-btn:hover { color: var(--text); background: var(--bg-elev-2); }
.nav-btn.active { color: #ffffff; background: var(--navy); font-weight: 700; }

.topbar-right { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.lang-toggle, .auth-toggle {
  background: var(--bg-elev-2); border: 1px solid var(--border); color: var(--text-dim);
  padding: 7px 14px; border-radius: 999px; font-size: 0.82rem; font-weight: 600; cursor: pointer;
  font-family: inherit; transition: all .15s ease; white-space: nowrap;
}
.lang-toggle:hover, .auth-toggle:hover { color: var(--navy); border-color: var(--navy); }
.auth-toggle.is-user { color: #ffffff; background: var(--navy); border-color: var(--navy); font-weight: 700; }
.admin-toggle-btn { color: var(--gold-deep); border-color: var(--gold-deep); font-weight: 700; }
.admin-toggle-btn:hover { background: var(--gold-deep); color: #fff; }
.admin-toggle-btn[hidden] { display: none; }

/* ---------- content ---------- */
.content { flex: 1; max-width: 1000px; width: 100%; margin: 0 auto; padding: 40px 24px 80px; }
.tool-section h2 { font-family: var(--serif); font-size: 1.55rem; margin-bottom: 4px; letter-spacing: -0.01em; }
.section-desc { color: var(--text-dim); margin-top: 4px; margin-bottom: 24px; font-size: 0.94rem; line-height: 1.5; }

/* ---------- home ---------- */
.hero {
  position: relative; overflow: hidden; border-radius: 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
  padding: 48px 32px 44px; text-align: left;
}
.hero::before {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(480px 260px at 12% 15%, rgba(22,38,79,0.05), transparent 65%),
    radial-gradient(420px 240px at 88% 70%, rgba(232,178,60,0.10), transparent 65%);
}
.hero-text { flex: 1 1 420px; min-width: 0; }
.hero h1 {
  font-family: var(--serif); font-weight: 700; font-size: 2.15rem; line-height: 1.4;
  letter-spacing: -0.01em; margin: 0 0 18px; color: var(--navy);
}
.hero-sub { color: var(--text-dim); font-size: 1rem; line-height: 1.8; }
.hero-sub strong { color: var(--gold-deep); font-weight: 700; }
.hero-lockup { flex: 0 0 240px; max-width: 240px; }
.hero-lockup img { display: block; width: 100%; height: auto; }
@media (max-width: 760px) {
  .hero { flex-direction: column; text-align: center; padding-top: 32px; }
  .hero-text { text-align: center; }
  .hero-lockup { order: -1; flex-basis: 180px; max-width: 180px; }
}

.card-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 8px;
}
@media (max-width: 860px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .card-grid { grid-template-columns: 1fr; } }

.feature-card {
  display: flex; flex-direction: column; align-items: flex-start; gap: 10px;
  background: #ffffff;
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; text-align: left; cursor: pointer; color: var(--text);
  font-family: inherit; transition: all .18s ease;
  position: relative; overflow: hidden;
  box-shadow: 0 1px 2px rgba(22,38,79,0.04);
}
.feature-card:hover {
  border-color: var(--navy); transform: translateY(-3px);
  box-shadow: 0 14px 28px rgba(22,38,79,0.10);
}
.feature-icon-badge {
  display: flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0;
  background: rgba(22,38,79,0.07); color: var(--navy);
  transition: all .18s ease;
}
.feature-icon-badge svg { width: 22px; height: 22px; }
.feature-card:hover .feature-icon-badge { background: var(--navy); color: #ffffff; }
.feature-title { font-weight: 700; font-size: 1.03rem; }
.feature-desc { color: var(--text-dim); font-size: 0.85rem; line-height: 1.5; }

.privacy-note {
  margin-top: 32px; padding: 14px 16px; border-radius: 10px; background: var(--bg-elev-2);
  border: 1px solid var(--border); color: var(--text-dim); font-size: 0.85rem; text-align: center;
}

.plan-banner {
  margin-top: 14px; padding: 14px 16px; border-radius: 10px; background: #fdf6e6;
  border: 1px solid var(--gold-deep); color: #5a4416; font-size: 0.85rem; text-align: center; line-height: 1.6;
}
.plan-banner strong { color: var(--gold-deep); }

.install-block {
  margin-top: 32px; padding: 20px 22px; border-radius: var(--radius);
  background: var(--navy); color: #ffffff;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.install-text h3 { margin: 0 0 4px; font-size: 1.02rem; }
.install-text p { margin: 0; color: rgba(255,255,255,0.75); font-size: 0.86rem; }
.install-block .secondary-btn { background: #ffffff; border-color: #ffffff; flex-shrink: 0; }
.install-block .secondary-btn:hover { background: var(--bg-elev-2); }
.install-ios-note { margin: 0; font-size: 0.82rem; color: rgba(255,255,255,0.85); max-width: 320px; }

.about-block {
  margin-top: 40px; padding-top: 32px; border-top: 1px solid var(--border);
  max-width: 720px; line-height: 1.8; font-size: 0.95rem;
}
.about-block h2 { font-family: var(--serif); font-size: 1.3rem; margin: 0 0 14px; }
.about-block p { color: var(--text); margin: 0 0 12px; }
.about-block strong { color: var(--navy); }

/* ---------- dropzone ---------- */
.dropzone {
  border: 2px dashed var(--border); border-radius: var(--radius); padding: 40px 20px;
  text-align: center; cursor: pointer; transition: all .15s ease; background: var(--bg-elev-2);
}
.dropzone:hover, .dropzone.dragover { border-color: var(--navy); background: var(--bg-elev-3); }
.dropzone p { margin: 0; color: var(--text-dim); font-size: 0.95rem; }
.dropzone .dropzone-limit { margin-top: 6px; font-size: 0.78rem; color: var(--text-dim); opacity: 0.8; }

.file-info { color: var(--text-dim); font-size: 0.88rem; margin: 10px 2px 0; }

/* ---------- file list ---------- */
.file-list { display: flex; flex-direction: column; gap: 8px; margin-top: 14px; }
.file-item {
  display: flex; align-items: center; gap: 10px; background: var(--bg-elev);
  border: 1px solid var(--border); border-radius: 10px; padding: 8px 12px;
}
.file-item .thumb { width: 36px; height: 36px; object-fit: cover; border-radius: 6px; flex-shrink: 0; background: #fff; border: 1px solid var(--border); }
.file-item .fname { flex: 1; font-size: 0.88rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-item button {
  background: var(--bg-elev-2); border: 1px solid var(--border); color: var(--text-dim);
  padding: 5px 10px; border-radius: 7px; font-size: 0.78rem; cursor: pointer; font-family: inherit;
}
.file-item button:hover { color: var(--text); border-color: var(--navy); }

/* ---------- options ---------- */
.options-row { display: flex; flex-wrap: wrap; gap: 20px; margin: 20px 0; align-items: flex-end; }
.option { display: flex; flex-direction: column; gap: 6px; }
.option label { font-size: 0.82rem; color: var(--text-dim); }
select, input[type="text"], input[type="number"], input[type="password"], input[type="email"] {
  background: var(--bg-elev); border: 1px solid var(--border); color: var(--text);
  padding: 9px 10px; border-radius: 8px; font-size: 1rem; font-family: inherit;
}
/* 16px+ font-size above avoids iOS Safari auto-zooming inputs on focus. */
input[type="range"] { accent-color: var(--gold); }
input[type="checkbox"] { accent-color: var(--gold); margin-right: 4px; }

.checkbox-grid { display: grid; grid-template-columns: repeat(3, auto); gap: 8px 18px; }
.checkbox-grid label { display: flex; align-items: center; font-size: 0.88rem; color: var(--text); white-space: nowrap; }

/* ---------- buttons ---------- */
.primary-btn {
  background: var(--navy); color: #ffffff; border: none; padding: 13px 28px;
  border-radius: 999px; font-size: 0.95rem; font-weight: 700; cursor: pointer;
  font-family: inherit; transition: all .15s ease;
}
.primary-btn:hover:not(:disabled) { background: var(--navy-deep); transform: translateY(-1px); }
.primary-btn:disabled { opacity: 0.35; cursor: not-allowed; }

.secondary-btn {
  background: var(--bg-elev-2); color: var(--text); border: 1px solid var(--border); padding: 10px 20px;
  border-radius: 999px; font-size: 0.88rem; font-weight: 600; cursor: pointer;
  font-family: inherit; transition: all .15s ease;
}
.secondary-btn:hover { border-color: var(--navy); color: var(--navy); }

.danger-btn {
  background: var(--danger-bg); color: var(--danger); border: 1px solid var(--danger); padding: 10px 20px;
  border-radius: 10px; font-size: 0.88rem; font-weight: 600; cursor: pointer; font-family: inherit;
  transition: all .15s ease;
}
.danger-btn:hover { background: var(--danger); color: #fff; }

/* ---------- status / progress ---------- */
.status { margin-top: 12px; font-size: 0.88rem; color: var(--text-dim); min-height: 1.2em; }
.status-success { color: var(--success); }
.status-error { color: var(--danger); }

.progress-wrap { margin-top: 14px; height: 8px; border-radius: 99px; background: var(--bg-elev-2); overflow: hidden; border: 1px solid var(--border); }
.progress-bar { height: 100%; width: 0%; background: var(--navy); transition: width .2s ease; }

/* ---------- quota badge ---------- */
.quota-badge {
  display: inline-flex; align-items: center; gap: 6px; margin-left: 10px; padding: 5px 12px;
  border-radius: 999px; font-size: 0.78rem; font-weight: 600; background: var(--bg-elev-2);
  border: 1px solid var(--border); color: var(--text-dim); vertical-align: middle;
}
.quota-badge.low { color: var(--danger); border-color: var(--danger); background: var(--danger-bg); }
.quota-badge[hidden] { display: none; }
.quota-row { display: flex; align-items: center; flex-wrap: wrap; gap: 4px; }

/* ---------- subtabs ---------- */
.subtabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 24px; border-bottom: 1px solid var(--border); padding-bottom: 14px; }
.subtab-btn {
  background: var(--bg-elev); border: 1px solid var(--border); color: var(--text-dim);
  padding: 8px 14px; border-radius: 999px; font-size: 0.85rem; cursor: pointer; font-family: inherit;
}
.subtab-btn:hover { color: var(--text); }
.subtab-btn.active { background: var(--navy); color: #ffffff; border-color: var(--navy); font-weight: 700; }

/* ---------- pdf page grid ---------- */
.pdf-page-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 14px; margin: 20px 0; }
.pdf-page-card {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: 10px; padding: 10px;
  display: flex; flex-direction: column; align-items: center; gap: 6px; transition: opacity .15s ease;
}
.pdf-page-card.deleted { opacity: 0.35; }
.pdf-thumb-wrap { display: flex; align-items: center; justify-content: center; overflow: hidden; max-height: 160px; }
.pdf-thumb-wrap canvas { max-width: 100%; box-shadow: 0 2px 8px rgba(0,0,0,0.18); transition: transform .15s ease; border: 1px solid var(--border); }
.pdf-page-label { font-size: 0.78rem; color: var(--text-dim); }
.pdf-page-controls { display: flex; gap: 4px; flex-wrap: wrap; justify-content: center; }
.pdf-page-controls button {
  background: var(--bg-elev-2); border: 1px solid var(--border); color: var(--text);
  padding: 4px 8px; border-radius: 6px; font-size: 0.74rem; cursor: pointer; font-family: inherit;
}
.pdf-page-controls button:hover { border-color: var(--navy); }

/* ---------- OCR ---------- */
.ocr-preview-wrap {
  margin-top: 14px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border);
  background: var(--bg-elev-2); max-height: 320px; display: flex; align-items: center; justify-content: center;
}
.ocr-preview-wrap img { max-width: 100%; max-height: 320px; display: block; }
.ocr-preview-wrap[hidden] { display: none; }
.ocr-result {
  width: 100%; min-height: 180px; margin-top: 18px; resize: vertical; background: var(--bg-elev);
  border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); padding: 14px 16px;
  font-family: var(--sans); font-size: 0.92rem; line-height: 1.6;
}
.ocr-result::placeholder { color: var(--text-dim); }
.ocr-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.ocr-actions[hidden] { display: none; }

/* ---------- text I/O (data / markdown / svg tools) ---------- */
.text-io {
  width: 100%; min-height: 160px; margin-top: 14px; resize: vertical; background: var(--bg-elev);
  border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); padding: 14px 16px;
  font-family: var(--sans); font-size: 0.92rem; line-height: 1.6;
}
.text-io::placeholder { color: var(--text-dim); }
.text-io.code { font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace; font-size: 0.85rem; }
.md-preview {
  width: 100%; height: 320px; margin-top: 12px; border-radius: var(--radius); border: 1px solid var(--border);
  background: #ffffff; display: block;
}
.md-preview[hidden] { display: none; }

/* ---------- 3D viewer ---------- */
.threed-viewer-wrap {
  position: relative; margin-top: 16px; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border); background: radial-gradient(circle at 50% 40%, #182042, #0a0e1a);
  height: 340px;
}
.threed-viewer-wrap canvas { width: 100%; height: 100%; display: block; }
.threed-viewer-empty {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  color: #b7c0e0; font-size: 0.9rem; margin: 0; pointer-events: none; text-align: center; padding: 0 20px;
}
.threed-viewer-empty[hidden] { display: none; }

/* ---------- image editor ---------- */
.imgedit-workspace { display: flex; gap: 24px; margin-top: 16px; align-items: flex-start; flex-wrap: wrap; }
.imgedit-workspace[hidden] { display: none; }
.imgedit-canvas-wrap {
  flex: 1 1 380px; min-width: 260px; border-radius: var(--radius); border: 1px solid var(--border);
  background:
    linear-gradient(45deg, #eee 25%, transparent 25%), linear-gradient(-45deg, #eee 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #eee 75%), linear-gradient(-45deg, transparent 75%, #eee 75%);
  background-size: 16px 16px; background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  display: flex; align-items: center; justify-content: center; overflow: hidden; padding: 8px;
}
.imgedit-canvas-wrap canvas { max-width: 100%; height: auto; display: block; cursor: grab; border-radius: 4px; }
.imgedit-canvas-wrap canvas.dragging { cursor: grabbing; }
.imgedit-panel { flex: 1 1 280px; min-width: 240px; display: flex; flex-direction: column; gap: 20px; }
.imgedit-block h4 { margin: 0 0 10px; font-size: 0.92rem; color: var(--text); }
.imgedit-presets { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.imgedit-presets button {
  background: var(--bg-elev-2); border: 1px solid var(--border); color: var(--text);
  padding: 6px 12px; border-radius: 999px; font-size: 0.78rem; font-weight: 600; cursor: pointer;
  font-family: inherit; transition: all .15s ease;
}
.imgedit-presets button.active, .imgedit-presets button:hover { background: var(--navy); color: #fff; border-color: var(--navy); }
.imgedit-text-input {
  width: 100%; padding: 10px 12px; margin-bottom: 12px; border: 1px solid var(--border);
  border-radius: 8px; font-family: inherit; font-size: 0.9rem;
}
.imgedit-text-label { display: block; font-size: 0.82rem; color: var(--text-dim); margin-bottom: 6px; }
.imgedit-anchor-grid { display: grid; grid-template-columns: repeat(3, 28px); gap: 6px; margin: 12px 0; }
.imgedit-anchor {
  width: 28px; height: 28px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--bg-elev-2); cursor: pointer; padding: 0;
}
.imgedit-anchor.active, .imgedit-anchor:hover { background: var(--navy); border-color: var(--navy); }
.imgedit-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

/* ---------- toast ---------- */
.toast-wrap {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  z-index: 100; display: flex; flex-direction: column; gap: 8px; align-items: center;
  pointer-events: none; width: 100%; padding: 0 16px;
}
.toast {
  background: #241f14; color: #fdf8ec; padding: 12px 20px; border-radius: 10px;
  font-size: 0.88rem; box-shadow: 0 8px 24px rgba(0,0,0,0.25); max-width: 420px; text-align: center;
  animation: toast-in .18s ease; line-height: 1.5;
}
.toast.error { background: var(--danger); }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ---------- auth ---------- */
.auth-note {
  margin: 0 0 20px; padding: 14px 16px; border-radius: 10px; background: var(--bg-elev-2);
  border: 1px solid var(--border); color: var(--text-dim); font-size: 0.84rem; line-height: 1.6;
}
.auth-form { max-width: 380px; display: flex; flex-direction: column; gap: 14px; }
.auth-form[hidden] { display: none; }
.auth-field { display: flex; flex-direction: column; gap: 6px; }
.auth-field label { font-size: 0.85rem; color: var(--text-dim); }
.auth-field input { width: 100%; padding: 10px 12px; }
.auth-switch { font-size: 0.86rem; color: var(--text-dim); margin-top: 6px; }
.auth-switch button { background: none; border: none; color: var(--gold-deep); font-weight: 700; cursor: pointer; padding: 0; font-family: inherit; font-size: inherit; }
.auth-error { color: var(--danger); font-size: 0.85rem; min-height: 1.2em; }
.auth-error.auth-info { color: var(--success); }

.oauth-buttons { display: flex; flex-direction: column; gap: 10px; }
.oauth-btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; padding: 11px 16px; border-radius: 10px; font-size: 0.9rem;
  font-weight: 600; font-family: inherit; cursor: pointer; transition: all .15s ease;
}
.oauth-btn-google { background: #fff; color: #3c4043; border: 1px solid var(--border); }
.oauth-btn-google:hover { background: var(--bg-elev-2); }
.oauth-btn-kakao { background: #FEE500; color: #191919; border: 1px solid #FEE500; }
.oauth-btn-kakao:hover { background: #f7dd00; }
.auth-divider {
  display: flex; align-items: center; gap: 12px; color: var(--text-dim);
  font-size: 0.8rem; margin: -2px 0;
}
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* ---------- account ---------- */
.account-card {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; margin-bottom: 20px;
}
.account-card h3 { margin: 0 0 14px; font-size: 1.05rem; }
.account-meta { color: var(--text-dim); font-size: 0.88rem; margin-bottom: 4px; }
.account-stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin-top: 14px; }
.account-stat {
  background: var(--bg-elev-2); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px;
}
.account-stat .n { font-size: 1.3rem; font-weight: 800; color: var(--gold-deep); }
.account-stat .label { font-size: 0.78rem; color: var(--text-dim); margin-top: 2px; }
.account-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }

/* ---------- admin ---------- */
.admin-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); margin-top: 8px; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.86rem; white-space: nowrap; }
.admin-table th, .admin-table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); }
.admin-table th { background: var(--bg-elev-2); color: var(--text-dim); font-weight: 700; font-size: 0.78rem; }
.admin-table tbody tr:last-child td { border-bottom: none; }
.admin-table select { padding: 5px 8px; border-radius: 6px; border: 1px solid var(--border); font-family: inherit; font-size: 0.85rem; }

/* ---------- legal / help ---------- */
.legal-content { max-width: 720px; line-height: 1.8; font-size: 0.95rem; }
.legal-content h3 { font-size: 1.05rem; margin: 24px 0 8px; }
.legal-content p, .legal-content li { color: var(--text); }
.legal-content ul { padding-left: 20px; }

/* ---------- free resources ---------- */
.resource-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px,1fr)); gap: 14px; margin: 20px 0; }
.resource-card {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px;
  display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center;
}
.resource-card .r-preview { width: 100%; height: 64px; display: flex; align-items: center; justify-content: center; }
.resource-card .r-preview svg { width: 40px; height: 40px; }
.resource-card .r-name { font-size: 0.85rem; font-weight: 600; }
.resource-card audio { width: 100%; height: 32px; }

.qr-preview-wrap {
  margin-top: 16px; display: flex; justify-content: center; padding: 20px;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius); max-width: 320px;
}
.qr-preview-wrap[hidden] { display: none; }
.qr-preview-wrap canvas { max-width: 100%; height: auto; image-rendering: pixelated; }
.qr-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.qr-actions[hidden] { display: none; }

.palette-swatches { display: flex; gap: 10px; flex-wrap: wrap; margin: 16px 0; }
.palette-swatch {
  width: 100px; height: 100px; border-radius: 12px; border: 1px solid var(--border); cursor: pointer;
  display: flex; align-items: flex-end; justify-content: center; padding-bottom: 8px;
  font-family: monospace; font-size: 0.78rem; font-weight: 700; transition: transform .15s ease;
}
.palette-swatch:hover { transform: translateY(-2px); }
.palette-swatch span { background: rgba(255,255,255,0.85); color: #16181d; padding: 2px 6px; border-radius: 4px; }

.gradient-preview { width: 100%; max-width: 420px; height: 140px; border-radius: var(--radius); border: 1px solid var(--border); margin-bottom: 16px; }

/* ---------- footer ---------- */
.footer { text-align: center; padding: 24px; color: var(--text-dim); font-size: 0.8rem; border-top: 1px solid var(--border); }
.footer-links { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; margin-top: 10px; }
.footer-links button {
  background: none; border: none; color: var(--text-dim); font-family: inherit; font-size: 0.8rem;
  cursor: pointer; padding: 0; text-decoration: underline;
}
.footer-links button:hover { color: var(--gold-deep); }