:root {
  --bg: #15181c;
  --panel: #1b1f24;
  --panel-2: #12151a;
  --panel-border: #2a2f36;
  --text: #edf1f4;
  --muted: #8b939c;
  --accent: #22c55e;
  --accent-dark: #16a34a;
  --accent-soft: rgba(34, 197, 94, 0.14);
  --radius: 12px;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
}
body {
  background:
    radial-gradient(1200px 500px at 50% -10%, rgba(34, 197, 94, 0.08), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.topbar { flex: 0 0 auto; }
.topbar {
  padding: 18px 24px 12px;
}
.topbar h1 {
  margin: 0 0 6px;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, var(--text), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.tagline { margin: 0; color: var(--muted); font-size: 0.9rem; }

.layout {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 12px;
  padding: 0 12px 12px;
  width: 100%;
  box-sizing: border-box;
}
@media (max-width: 880px) {
  html, body { height: auto; }
  body { overflow: auto; }
  .layout { grid-template-columns: 1fr; height: auto; }
  .controls { height: auto; max-height: 50vh; }
  .viewer-wrap { height: auto; min-height: 60vh; }
}

.controls {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 16px;
  height: 100%;
  min-height: 0;
  overflow-y: auto;
}
.controls::-webkit-scrollbar { width: 8px; }
.controls::-webkit-scrollbar-thumb { background: var(--panel-border); border-radius: 8px; }

.type-select-wrap {
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--panel-border);
}
.type-select-wrap label { margin: 0 0 5px; }
.type-select-wrap select {
  font-weight: 700;
  border-color: var(--accent);
}
.reset-btn {
  display: block;
  width: 100%;
  margin-top: 10px;
  padding: 8px 0;
  background: var(--panel-2);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  color: var(--muted);
  font-size: 0.8rem;
  cursor: pointer;
}
.reset-btn:hover { border-color: #f87171; color: #f87171; }

fieldset {
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  margin-bottom: 14px;
  padding: 10px 14px 14px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.015), transparent);
}
legend {
  padding: 0 6px;
  color: var(--accent);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-weight: 700;
}

label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin: 12px 0 5px;
}
.hint { font-weight: 400; opacity: 0.7; font-size: 0.75rem; }
.sub-label {
  margin: 4px 0 4px 10px;
  padding-left: 8px;
  border-left: 2px solid var(--panel-border);
  font-size: 0.76rem;
}
.val {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
}

input[type="text"],
select {
  width: 100%;
  padding: 8px 10px;
  background: var(--panel-2);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color 0.15s ease;
}
input[type="text"]:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
}

input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 2px;
  background: var(--panel-border);
  margin-top: 4px;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 0 0 4px var(--accent-soft);
  transition: box-shadow 0.15s ease;
}
input[type="range"]:hover::-webkit-slider-thumb { box-shadow: 0 0 0 6px var(--accent-soft); }
input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  cursor: pointer;
}


.icon-picker {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 6px;
  margin: 4px 0 2px;
  transition: max-height 0.2s ease;
}
.icon-toggle-btn {
  display: block;
  width: 100%;
  background: none;
  border: none;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 600;
  padding: 6px 0 2px;
  cursor: pointer;
  text-align: left;
}
.icon-toggle-btn:hover { text-decoration: underline; }
.icon-btn {
  background: var(--panel-2);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  font-size: 1.05rem;
  line-height: 1;
  padding: 7px 0;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}
.icon-btn:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  transform: translateY(-1px);
}
.icon-btn.selected {
  background: var(--accent-soft);
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent) inset;
}
.icon-btn.locked {
  position: relative;
  background: #0a0c0e;
  border-color: #1c2026;
  color: #3a4048;
  opacity: 0.55;
}
.icon-btn.locked:hover {
  background: #0a0c0e;
  border-color: #1c2026;
  transform: none;
}
.icon-btn.locked::after {
  content: "\1F512";
  position: absolute;
  bottom: 1px;
  right: 2px;
  font-size: 0.5rem;
}

.lock-hint {
  color: var(--muted);
  font-size: 0.72rem;
  margin: 4px 0 2px;
}

select option:disabled {
  color: #4a5058;
}

.icon-position-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 8px 0 2px;
}
.icon-position-label {
  font-size: 0.78rem;
  color: var(--muted);
  margin-right: 2px;
}
.icon-position-row button {
  flex: 1;
  background: var(--panel-2);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  color: var(--muted);
  padding: 7px 0;
  font-size: 0.78rem;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.icon-position-row button:hover { border-color: var(--accent); }
.icon-position-row button.selected {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

.viewer-wrap {
  position: relative;
  background:
    radial-gradient(800px 400px at 50% 0%, rgba(34, 197, 94, 0.06), transparent 60%),
    var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  overflow: hidden;
  height: 100%;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
#viewer {
  flex: 1;
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
}
#viewer:active { cursor: grabbing; }

#dimsPanel {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(18, 21, 26, 0.92);
  backdrop-filter: blur(6px);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 10px 14px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text);
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}
#dimsPanel.visible { opacity: 1; transform: translateY(0); }
#dimsPanel strong {
  display: block;
  color: var(--accent);
  font-family: "Inter", sans-serif;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 3px;
  font-weight: 700;
}
.dims-sub {
  display: block;
  font-family: "Inter", sans-serif;
  color: var(--muted);
  font-size: 0.68rem;
  margin-top: 1px;
}

.viewer-hint {
  position: absolute;
  top: 14px;
  right: 14px;
  color: var(--muted);
  font-size: 0.75rem;
  background: rgba(18, 21, 26, 0.75);
  padding: 5px 10px;
  border-radius: 20px;
  border: 1px solid var(--panel-border);
  pointer-events: none;
}

.viewer-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-top: 1px solid var(--panel-border);
  background: var(--panel-2);
}
#status { color: var(--muted); font-size: 0.85rem; font-family: "JetBrains Mono", monospace; }
#status.busy { color: var(--accent); }

.sitefooter {
  flex: 0 0 auto;
  text-align: center;
  color: var(--muted);
  font-size: 0.72rem;
  padding: 6px 22px 10px;
  line-height: 1.6;
}

@media (max-width: 880px) {
  .sitefooter { padding: 16px 22px; }
}


/* ===================== topbar layout ===================== */
.hidden { display: none !important; }

.topbar-inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-logo {
  width: 42px;
  height: 42px;
  object-fit: contain;
  flex-shrink: 0;
}

/* ===================== export button + modal ===================== */
.export-widget { padding-bottom: 4px; }
#exportBtn {
  background: linear-gradient(180deg, var(--accent), var(--accent-dark));
  color: #06231a;
  border: none;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: 9px;
  cursor: pointer;
  font-size: 0.88rem;
}
#exportBtn:disabled { opacity: 0.4; cursor: not-allowed; }
#exportBtn:hover:not(:disabled) { filter: brightness(1.08); transform: translateY(-1px); }

.export-format-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 4px 0 16px;
}
.export-format-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  background: var(--panel-2);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 16px 10px;
  cursor: pointer;
  color: var(--text);
  text-align: center;
}
.export-format-btn:hover { border-color: var(--accent); background: var(--accent-soft); }
.export-format-btn strong { font-size: 1rem; color: var(--accent); }
.export-format-btn span { font-size: 0.72rem; color: var(--muted); line-height: 1.3; }
.export-format-btn:disabled { opacity: 0.5; cursor: not-allowed; }

#exportLicenseNotice a {
  color: var(--accent);
  text-decoration: underline;
}

/* ===================== account widget + license modal ===================== */
.account-widget {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--muted);
  padding-bottom: 4px;
}
#accountActionBtn {
  background: var(--panel-2);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-weight: 700;
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.84rem;
}
#accountActionBtn:hover { background: var(--accent-soft); }

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 12, 14, 0.72);
  backdrop-filter: blur(3px);
}
.modal-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 460px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 28px 26px;
}
.modal-card h2 {
  margin: 0 0 10px;
  font-size: 1.2rem;
  text-align: center;
}
.modal-close {
  position: absolute;
  top: 10px;
  right: 12px;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  padding: 4px;
}
.modal-close:hover { color: var(--text); }

.gate-status {
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
  margin: 0 0 16px;
  line-height: 1.5;
}
.buy-link {
  display: block;
  width: 100%;
  text-align: center;
  background: linear-gradient(180deg, var(--accent), var(--accent-dark));
  color: #06231a;
  font-weight: 700;
  padding: 11px 0;
  border-radius: 9px;
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 18px;
}
.buy-link:hover { filter: brightness(1.08); }

.license-tiers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 0 0 18px;
}
@media (max-width: 420px) {
  .license-tiers { grid-template-columns: 1fr; }
}
.license-tier-card {
  background: var(--panel-2);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
}
.license-tier-card h3 {
  margin: 0 0 6px;
  font-size: 0.92rem;
  color: var(--accent);
}
.license-tier-card p {
  margin: 0 0 12px;
  font-size: 0.76rem;
  color: var(--muted);
  line-height: 1.4;
  flex: 1;
}
.license-tier-card .buy-link {
  padding: 9px 0;
  font-size: 0.82rem;
}

#licenseForm label { margin: 0 0 5px; }
#licenseForm button[type="submit"] {
  width: 100%;
  margin-top: 12px;
  background: var(--panel-2);
  border: 1px solid var(--panel-border);
  color: var(--text);
  font-weight: 700;
  padding: 11px 0;
  border-radius: 9px;
  cursor: pointer;
  font-size: 0.92rem;
}
#licenseForm button[type="submit"]:hover { border-color: var(--accent); }
#licenseForm button[type="submit"]:disabled { opacity: 0.5; cursor: not-allowed; }

.gate-error {
  color: #f87171;
  font-size: 0.82rem;
  min-height: 1.1em;
  margin: 6px 0 0;
}

/* ===================== color trigger buttons ===================== */
.color-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 10px;
  background: var(--panel-2);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.88rem;
  cursor: pointer;
  text-align: left;
}
.color-trigger:hover { border-color: var(--accent); }
.color-trigger .export-caret { margin-left: auto; color: var(--muted); font-size: 0.7em; }
.color-swatch {
  width: 18px;
  height: 18px;
  border-radius: 5px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  flex-shrink: 0;
}

/* ===================== shared color panel ===================== */
.color-panel {
  position: fixed;
  z-index: 200;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.45);
  padding: 10px;
  width: 220px;
}
.color-panel-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}
.color-swatch-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: none;
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 5px 2px;
  cursor: pointer;
}
.color-swatch-btn:hover { border-color: var(--panel-border); background: var(--panel-2); }
.color-swatch-btn.selected { border-color: var(--accent); background: var(--accent-soft); }
.color-swatch-btn .color-swatch { width: 24px; height: 24px; }
.color-swatch-btn span.color-swatch-label {
  font-size: 0.6rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.15;
}
.color-panel-clear {
  display: block;
  width: 100%;
  margin-top: 8px;
  padding: 7px 0;
  background: var(--panel-2);
  border: 1px solid var(--panel-border);
  border-radius: 7px;
  color: var(--muted);
  font-size: 0.78rem;
  cursor: pointer;
}
.color-panel-clear:hover { border-color: var(--accent); color: var(--accent); }

/* ===================== paint mode ===================== */
.paint-toggle-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  cursor: pointer;
}
.paint-toggle-row input[type="checkbox"] {
  width: 15px;
  height: 15px;
  accent-color: var(--accent);
  cursor: pointer;
}
.paint-letter-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}
.paint-letter-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  height: 30px;
  padding: 0 6px;
  border-radius: 7px;
  border: 1px solid var(--panel-border);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  color: #06231a;
}

/* ===================== keyring position preset grid ===================== */
.keyring-preset-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  width: 132px;
  margin: 6px auto 10px;
}
.keyring-preset-grid button {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 34px;
  background: var(--panel-2);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  color: var(--text);
  font-size: 1rem;
  cursor: pointer;
}
.keyring-preset-grid button:hover { border-color: var(--accent); }
.keyring-preset-grid button.selected {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

.remove-license-btn {
  display: block;
  width: 100%;
  margin-top: 12px;
  padding: 9px 0;
  background: none;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  color: #f87171;
  font-size: 0.8rem;
  cursor: pointer;
}
.remove-license-btn:hover { border-color: #f87171; background: rgba(248, 113, 113, 0.08); }

/* ===================== connectivity / dependency error banners ===================== */
.offline-banner {
  background: #7c2d12;
  color: #fed7aa;
  text-align: center;
  font-size: 0.82rem;
  padding: 8px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.offline-banner.error {
  background: #7f1d1d;
  color: #fecaca;
}