:root {
  --navy: #0a1f44;
  --navy-700: #12295a;
  --blue: #1e40af;
  --blue-600: #2563eb;
  --accent: #f59e0b;
  --cyan: #06b6d4;
  --green: #10b981;
  --red: #dc2626;
  --bg: #fafaf7;
  --panel: #ffffff;
  --dark: #0f172a;
  --line: #e2e8f0;
  --muted: #64748b;
  --radius: 12px;
  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Plus Jakarta Sans', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, monospace;
  --shadow-pill: 0 10px 26px rgba(15, 23, 42, 0.14);
  --shadow-popup: 0 18px 44px rgba(15, 23, 42, 0.22);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--dark);
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
}

button { font-family: inherit; cursor: pointer; }
svg { display: block; }

:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 6px;
}

.app { position: relative; height: 100%; width: 100%; }

.canvas-host {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.canvas-host canvas { display: block; }

.floating { position: absolute; z-index: 20; }

/* ---------- brand ---------- */

.brand-bar {
  top: 14px;
  left: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 12px 7px 8px;
  background: rgba(255, 255, 255, 0.97);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow-pill);
  backdrop-filter: blur(6px);
}

.brand-logo {
  width: 34px;
  height: 32px;
  object-fit: contain;
  border-radius: 7px;
  background: #fff;
}

.brand-lines { line-height: 1.25; }
.brand-lines span {
  display: block;
  font-size: 9px;
  letter-spacing: 0.13em;
  font-weight: 600;
  color: var(--muted);
}
.brand-lines strong {
  display: block;
  font-family: var(--font-display);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 0.01em;
}

/* ---------- toolbar ---------- */

.toolbar {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 8px;
}

.right-bar {
  top: 14px;
  right: 14px;
  display: flex;
  gap: 8px;
}

.tool-pill {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  background: rgba(255, 255, 255, 0.97);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow-pill);
  backdrop-filter: blur(6px);
}

.tool-sep {
  width: 1px;
  height: 20px;
  margin: 0 4px;
  background: var(--line);
}

.tool-btn {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--navy);
  transition: background 0.15s, color 0.15s, border-color 0.15s, transform 0.12s;
}
.tool-btn svg { width: 19px; height: 19px; }
.tool-btn:hover { background: #f1f5f9; }
.tool-btn:active { transform: scale(0.94); }
.tool-btn.active {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}
.tool-btn.danger { color: var(--red); }
.tool-btn.danger:hover { background: #fef2f2; }

.tool-btn[data-tip],
.btn[data-tip] { position: relative; }

.tool-btn[data-tip]::after,
.btn[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  top: calc(100% + 9px);
  left: 50%;
  transform: translateX(-50%);
  padding: 5px 9px;
  background: var(--navy);
  color: #fff;
  font-family: var(--font-body);
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1.2;
  border-radius: 7px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.12s;
  z-index: 40;
}

.tool-btn[data-tip]:hover::after,
.btn[data-tip]:hover::after { opacity: 1; }

.zoom-controls .tool-btn[data-tip]::after,
.brand-bar .btn[data-tip]::after {
  top: auto;
  bottom: calc(100% + 9px);
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  color: var(--navy);
  font-size: 12.5px;
  font-weight: 600;
  transition: background 0.15s, border-color 0.15s, transform 0.12s;
}
.btn svg { width: 15px; height: 15px; }
.btn:hover:not(:disabled) { background: #f8fafc; border-color: #cbd5e1; }
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn.ghost { background: #fff; }
.btn.primary {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}
.btn.primary:hover { background: var(--navy-700); }
.btn.danger {
  color: var(--red);
  border-color: #fecaca;
}
.btn.danger:hover { background: #fef2f2; }

/* ---------- property popup ---------- */

.prop-popup {
  position: absolute;
  z-index: 15;
  top: 74px;
  right: 14px;
  width: 300px;
  max-height: calc(100% - 170px);
  overflow-y: auto;
  padding: 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow-popup);
  animation: pop-in 0.16s ease-out;
}
.prop-popup[hidden] { display: none; }

@keyframes pop-in {
  from { opacity: 0; transform: translateY(-4px) scale(0.99); }
  to { opacity: 1; transform: none; }
}

.insp-heading {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--navy);
}

.insp-readout {
  margin: 0 0 8px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--muted);
  word-break: break-word;
}

.insp-field { display: block; margin-bottom: 11px; }

.insp-label {
  display: block;
  margin-bottom: 5px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--navy);
}

.insp-field input[type="text"],
.insp-field input[type="number"],
.insp-field select,
.insp-textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  color: var(--dark);
  font-family: inherit;
  font-size: 12.5px;
}
.insp-textarea { resize: vertical; line-height: 1.45; }
.insp-field select { cursor: pointer; }
.insp-field input:focus,
.insp-field select:focus,
.insp-textarea:focus {
  outline: none;
  border-color: var(--blue-600);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.insp-row { display: flex; gap: 6px; }
.insp-row input { min-width: 0; }

.insp-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  margin-bottom: 11px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--navy);
  cursor: pointer;
}
.insp-toggle input { accent-color: var(--blue-600); }

.insp-color { display: flex; align-items: center; gap: 6px; }
.insp-color input[type="color"] {
  flex: 0 0 auto;
  width: 34px;
  height: 32px;
  padding: 0;
  border: 1px solid #cbd5e1;
  border-radius: 9px;
  background: #fff;
  cursor: pointer;
  box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.06);
}

.insp-section {
  margin: 16px 0 10px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
}
.insp-section:first-of-type { margin-top: 0; padding-top: 0; border-top: 0; }
.insp-hex { flex: 1 1 auto; font-family: var(--font-mono); font-size: 12px; }

.insp-actions { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }

.insp-btn {
  flex: 1 1 auto;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  color: var(--navy);
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 600;
  transition: background 0.15s, border-color 0.15s;
}
.insp-btn:hover { background: #f8fafc; border-color: #cbd5e1; }
.insp-btn.danger { color: var(--red); border-color: #fecaca; }
.insp-btn.danger:hover { background: #fef2f2; }

/* ---------- minimap ---------- */

.minimap {
  position: absolute;
  z-index: 14;
  right: 14px;
  bottom: 74px;
  padding: 5px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow-pill);
  cursor: pointer;
}
.minimap-canvas { display: block; border-radius: 6px; }

/* ---------- zoom ---------- */

.zoom-controls {
  position: absolute;
  z-index: 16;
  right: 14px;
  bottom: 14px;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow-pill);
}

.zoom-value {
  min-width: 46px;
  padding: 0 4px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--muted);
}

/* ---------- badges ---------- */

.canvas-badge {
  position: absolute;
  z-index: 12;
  left: 14px;
  bottom: 14px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 12px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--line);
  border-radius: 99px;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.08);
  font-size: 12px;
  color: #475569;
  white-space: nowrap;
}
.canvas-badge .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #cbd5e1;
}

.hint-pill {
  position: absolute;
  z-index: 12;
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  padding: 7px 14px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: 99px;
  font-size: 12px;
  color: #475569;
  white-space: nowrap;
  pointer-events: none;
  backdrop-filter: blur(4px);
}

.toast {
  position: absolute;
  z-index: 30;
  left: 50%;
  top: 64px;
  transform: translateX(-50%);
  padding: 9px 16px;
  background: var(--navy);
  color: #fff;
  border-radius: 99px;
  font-size: 12.5px;
  font-weight: 600;
  box-shadow: 0 12px 30px rgba(10, 31, 68, 0.28);
  animation: toast-in 0.18s ease-out;
}
.toast[hidden] { display: none; }

@keyframes toast-in {
  from { opacity: 0; transform: translate(-50%, -6px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* ---------- modals ---------- */

.modal {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(10, 31, 68, 0.42);
  backdrop-filter: blur(3px);
}
.modal[hidden] { display: none; }

.modal-box {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: min(880px, 100%);
  max-height: 100%;
  padding: 16px;
  background: var(--panel);
  border-radius: 16px;
  box-shadow: 0 28px 70px rgba(10, 31, 68, 0.34);
  animation: pop-in 0.18s ease-out;
}

.modal-head { display: flex; align-items: center; justify-content: space-between; }
.modal-head strong {
  font-family: var(--font-display);
  font-size: 14.5px;
  color: var(--navy);
}

.modal-box textarea {
  flex: 1 1 auto;
  min-height: 320px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fbfcfe;
  color: var(--dark);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  resize: vertical;
}

.modal-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.modal-note { margin: 0; min-height: 16px; font-size: 12px; color: var(--muted); }

/* ---------- diagram list ---------- */

.diagram-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 46vh;
  overflow-y: auto;
  padding-right: 2px;
}

.diagram-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: #fff;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.diagram-item:hover { background: #f8fafc; }
.diagram-item.active { border-color: var(--blue-600); background: #eff6ff; }

.diagram-item .dot-mark {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 2px solid #cbd5e1;
  background: #fff;
}
.diagram-item.active .dot-mark { border-color: var(--blue-600); background: var(--blue-600); }

.diagram-item .grow { flex: 1 1 auto; min-width: 0; }
.diagram-item .nama {
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
}
.diagram-item .nama-input {
  width: 100%;
  padding: 4px 7px;
  border: 1px solid var(--blue-600);
  border-radius: 7px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
}
.diagram-item .meta { margin-top: 2px; font-size: 11.5px; color: var(--muted); }

.diagram-item .mini {
  flex: 0 0 auto;
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--navy);
  font-family: inherit;
  font-size: 11.5px;
  font-weight: 600;
}
.diagram-item .mini:hover { background: #f1f5f9; }
.diagram-item .mini.danger { color: var(--red); border-color: #fecaca; }
.diagram-item .mini.danger:hover { background: #fef2f2; }

/* ---------- small screens ---------- */

@media (max-width: 1100px) {
  .brand-lines span { display: none; }
  .hint-pill { display: none; }
  .prop-popup { width: 268px; }
}

@media (max-width: 820px) {
  .toolbar { top: auto; bottom: 64px; left: 14px; transform: none; }
  .minimap { display: none; }
  .brand-bar .btn span { display: none; }
}