/* Web configurator — simple, legible, responsive two-column layout. */

:root {
  --bg: #14171b;
  --panel: #1d2127;
  --panel-2: #232833;
  --border: #333a45;
  --text: #e7ebf0;
  --muted: #9aa4b2;
  --accent: #4f9dff;
  --accent-hover: #6cb0ff;
  --danger-bg: #4a1d21;
  --danger-border: #7a2c33;
  --danger-text: #ffd7da;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}

.topbar {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.topbar h1 {
  font-size: 1.15rem;
  margin: 0;
}
.subtitle {
  color: var(--muted);
  font-size: 0.85rem;
}

.error-banner {
  margin: 12px 20px 0;
  padding: 10px 14px;
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
  color: var(--danger-text);
  border-radius: 6px;
  font-size: 0.9rem;
  white-space: pre-wrap;
}

/* Two-column responsive layout. */
.layout {
  display: grid;
  grid-template-columns: minmax(320px, 420px) 1fr;
  gap: 18px;
  padding: 18px 20px;
  align-items: start;
}
@media (max-width: 820px) {
  .layout {
    grid-template-columns: 1fr;
  }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}

/* ---- Left panel: form ---- */
.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
}
.field > label {
  font-size: 0.82rem;
  color: var(--muted);
}
select,
input[type="number"],
input[type="text"],
input[type="file"] {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 7px 9px;
  font-size: 0.9rem;
  width: 100%;
}
input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}
.project-description {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0 0 12px;
}
.project-diagram {
  display: block;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin: 0 0 12px;
}

.param-group {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px 4px;
  margin: 0 0 14px;
}
.param-group legend {
  padding: 0 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
}

.advanced-params {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px 12px;
  margin: 0 0 14px;
  background: var(--panel-2);
}
.advanced-params > summary {
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  padding: 6px 2px;
}
.advanced-params[open] > summary {
  margin-bottom: 6px;
}
.advanced-params .param-group {
  background: transparent;
}
.param-field .help {
  color: var(--muted);
  font-size: 0.75rem;
}

/* Param fields: label + control on ONE line to stay compact. */
.param-field {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.param-field > label {
  flex: 1 1 auto;
  min-width: 0; /* let a long label shrink/wrap instead of forcing overflow */
}
.param-field input[type="number"],
.param-field input[type="text"],
.param-field select {
  flex: 0 0 auto;
  width: 6.5rem; /* compact fixed-width control on the right */
}
.param-field input[type="checkbox"] {
  flex: 0 0 auto;
}
/* File inputs are wide: give them their own full-width line under the label. */
.param-field input[type="file"] {
  flex: 1 1 100%;
  width: 100%;
}
/* Help text always on its own full-width line under the control. */
.param-field .help {
  flex: 1 1 100%;
}

.generate-btn {
  width: 100%;
  padding: 11px 16px;
  background: var(--accent);
  color: #04122a;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  margin-top: 4px;
}
.generate-btn:hover {
  background: var(--accent-hover);
}
.generate-btn:disabled {
  opacity: 0.6;
  cursor: default;
}
.status-line {
  color: var(--muted);
  font-size: 0.82rem;
  min-height: 1.2em;
  margin-top: 8px;
}

/* ---- Right panel: outputs ---- */
.outputs-title {
  font-size: 1rem;
  margin: 0 0 8px;
}
.outputs-hint {
  color: var(--muted);
  font-size: 0.88rem;
}

.outputs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.output-card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.output-name {
  margin: 0;
  font-size: 0.95rem;
  color: var(--accent);
}

.viewer {
  position: relative;
  width: 100%;
  height: 260px;
  background: #1b1f24;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.viewer canvas {
  display: block;
}
.viewer-note {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 12px;
  color: var(--muted);
  font-size: 0.82rem;
}

.summary {
  margin: 0;
  font-size: 0.82rem;
  color: var(--text);
}

.links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.dl-link {
  display: inline-block;
  padding: 6px 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--accent);
  text-decoration: none;
  font-size: 0.82rem;
}
.dl-link:hover {
  border-color: var(--accent);
  color: var(--accent-hover);
}