/* ============================================================
   PneuSim v0.0.1 — Stylesheet
   Tema fosc per defecte. Variables CSS per a temes.
   ============================================================ */

:root {
  --bg: #1a1d23;
  --bg-panel: #242830;
  --bg-elevated: #2d3340;
  --fg: #e8e8e8;
  --fg-muted: #9aa3b2;
  --accent: #4ea1ff;
  --accent-hover: #6cb4ff;
  --tube: #6cb4ff;
  --tube-pressurized: #00d68f;
  --wire: #ff7755;
  --wire-active: #ffd24a;
  --border: #3a4050;
  --selected: #ffd24a;
  --grid: rgba(255, 255, 255, 0.04);
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  --tap-target: 32px;
  /* === Port indicators === */
  --port-pneumatic: #4ea1ff;       /* igual que accent */
  --port-pneumatic-hover: #ffffff; /* blanc pur en hover → màxim contrast */
  --port-electric: #ff7755;        /* igual que wire */
  --port-electric-hover: #ffd24a;  /* groc actiu en hover */
  --port-pressurized: #00d68f;     /* igual que tube-pressurized */
  --port-stroke: #ffffff;
  --port-stroke-hover: #1a1d23;    /* contorn fosc sobre cercle blanc */
  --port-halo: rgba(78, 161, 255, 0.35); /* halo semitransparent */
  --port-halo-target: rgba(78, 161, 255, 0.15); /* zona hit visible connecting */
}

[data-theme="light"] {
  --bg: #f4f6f8;
  --bg-panel: #ffffff;
  --bg-elevated: #f0f2f5;
  --fg: #1a1d23;
  --fg-muted: #5c6370;
  --border: #d0d5dd;
  --grid: rgba(0, 0, 0, 0.05);
}

[data-theme="contrast"] {
  --bg: #000;
  --bg-panel: #000;
  --bg-elevated: #111;
  --fg: #fff;
  --fg-muted: #ddd;
  --accent: #ffd24a;
  --border: #fff;
  --tap-target: 48px;
}

[data-theme="navy"] {
  --bg: #0d1520;
  --bg-panel: #131d2e;
  --bg-elevated: #1a2840;
  --fg: #c8ddf5;
  --fg-muted: #7a9bbb;
  --accent: #5bc8f5;
  --accent-hover: #80d8ff;
  --tube: #5bc8f5;
  --tube-pressurized: #00e595;
  --wire: #ff8855;
  --wire-active: #ffdd60;
  --border: #1e3050;
  --selected: #ffdd60;
  --grid: rgba(200, 230, 255, 0.04);
  --port-pneumatic: #5bc8f5;
  --port-electric: #ff8855;
  --port-stroke: #c8ddf5;
  --port-stroke-hover: #0d1520;
  --port-halo: rgba(91, 200, 245, 0.35);
  --port-halo-target: rgba(91, 200, 245, 0.15);
}

[data-theme="warm"] {
  --bg: #1c1610;
  --bg-panel: #23201a;
  --bg-elevated: #2c2820;
  --fg: #f0e8d5;
  --fg-muted: #a09070;
  --accent: #e8a030;
  --accent-hover: #f0b840;
  --tube: #80b4e8;
  --tube-pressurized: #50d890;
  --wire: #ff7755;
  --wire-active: #ffcc44;
  --border: #40341e;
  --selected: #ffcc44;
  --grid: rgba(255, 220, 150, 0.04);
  --port-pneumatic: #80b4e8;
  --port-electric: #ff7755;
  --port-stroke: #f0e8d5;
  --port-stroke-hover: #1c1610;
  --port-halo: rgba(232, 160, 48, 0.35);
  --port-halo-target: rgba(232, 160, 48, 0.15);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  overflow: hidden;
}

/* === Toolbar === */
#toolbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 48px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 8px;
  z-index: 100;
  box-shadow: var(--shadow);
}

.toolbar-title {
  font-weight: 600;
  font-size: 16px;
  margin-right: 16px;
}

.toolbar-title .version {
  font-size: 11px;
  opacity: 0.6;
  font-weight: 400;
}

.toolbar-btn {
  height: var(--tap-target);
  min-width: var(--tap-target);
  padding: 0 12px;
  background: transparent;
  color: var(--fg);
  border: 1px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.toolbar-btn:hover {
  background: var(--bg-elevated);
  border-color: var(--border);
}

.toolbar-btn.play-btn { color: var(--tube-pressurized); font-weight: 600; }

.toolbar-sep {
  width: 1px;
  height: 24px;
  background: var(--border);
  margin: 0 4px;
}

.toolbar-select {
  height: var(--tap-target);
  background: var(--bg-elevated);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0 8px;
  font-size: 13px;
}

#toolbar-btns {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

#hamburger-btn { display: none; }

/* === Sidebar === */
#sidebar {
  position: fixed;
  top: 48px; left: 0; bottom: 0;
  width: 240px;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 8px;
  z-index: 50;
}

#sidebar-search {
  width: 100%;
  height: var(--tap-target);
  margin-bottom: 8px;
  padding: 0 8px;
  background: var(--bg-elevated);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 4px;
}

.palette-section {
  margin-bottom: 12px;
}

.palette-section h3 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--fg-muted);
  margin: 8px 0 4px;
  cursor: pointer;
  user-select: none;
}

.palette-items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
}

.palette-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px;
  font-size: 11px;
  text-align: center;
  cursor: grab;
  min-height: 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.palette-item:hover { border-color: var(--accent); }
.palette-item:active { cursor: grabbing; }

/* === Canvas Container === */
#canvas-container {
  position: fixed;
  top: 48px; left: 240px; right: 0; bottom: 0;
  background: var(--bg);
}

#canvas-pneumatic, #canvas-electric {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  display: block;
  cursor: default;
}

/* Mode connexió activa: cursor crosshair + cursor: none gestionat via JS */
#canvas-pneumatic.connecting,
#canvas-electric.connecting {
  cursor: crosshair;
}

#hud {
  position: absolute;
  bottom: 8px; left: 8px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 12px;
  display: flex;
  gap: 16px;
  font-size: 12px;
  font-family: ui-monospace, "Cascadia Code", monospace;
}

/* === Modals === */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.modal[hidden] { display: none; }

.modal-content {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  max-width: 720px;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow);
}

.modal-close {
  position: absolute;
  top: 8px; right: 8px;
  background: transparent;
  border: none;
  color: var(--fg);
  font-size: 24px;
  cursor: pointer;
  width: var(--tap-target);
  height: var(--tap-target);
}

/* === Diagram Panel === */
#diagram-panel {
  position: fixed;
  bottom: 0; left: 240px; right: 0;
  height: 200px;
  background: var(--bg-panel);
  border-top: 1px solid var(--border);
  z-index: 80;
}

#diagram-panel header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 12px;
  border-bottom: 1px solid var(--border);
}

#diagram-canvas {
  width: 100%;
  height: calc(100% - 32px);
  display: block;
}

/* === Toolbar active state === */
.toolbar-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* === Palette items === */
.pi-name {
  font-size: 10px;
  word-break: break-word;
  line-height: 1.2;
}

/* === Examples list === */
#examples-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.example-btn {
  width: 100%;
  padding: 10px 14px;
  margin: 4px 0;
  background: var(--bg-elevated);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 4px;
  text-align: left;
  cursor: pointer;
  font-size: 14px;
}

.example-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* === Help modal content === */
#modal-help-content h3 {
  margin: 16px 0 6px;
  font-size: 15px;
  color: var(--accent);
}

#modal-help-content dl {
  margin: 0;
  padding: 0;
}

#modal-help-content dt {
  font-weight: 600;
  margin-top: 8px;
  font-size: 13px;
}

#modal-help-content dd {
  margin: 2px 0 0 12px;
  font-size: 13px;
  color: var(--fg-muted);
}

/* === Config modal === */
.config-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.config-row label {
  min-width: 120px;
  font-size: 13px;
  color: var(--fg-muted);
}

.config-input, .config-select {
  flex: 1;
  height: 32px;
  background: var(--bg-elevated);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0 8px;
  font-size: 13px;
}

.config-input:focus, .config-select:focus {
  outline: none;
  border-color: var(--accent);
}

.config-note {
  font-size: 11px;
  color: var(--fg-muted);
  margin: -4px 0 0 0;
  padding-left: 132px;
  font-style: italic;
}

/* === Responsive — tauleta i mòbil === */
@media (max-width: 900px) {
  #sidebar { width: 200px; }
  #canvas-container { left: 200px; }
  #diagram-panel { left: 200px; }
}

@media (max-width: 640px) {
  #hamburger-btn { display: inline-flex; }
  #sidebar {
    transform: translateX(-100%);
    transition: transform 0.2s;
  }
  #sidebar.open { transform: translateX(0); }
  #canvas-container, #diagram-panel { left: 0; }
}

/* === ORBYS 4K — targets tàctils més grans === */
@media (min-width: 2560px) {
  :root { --tap-target: 56px; }
  body { font-size: 18px; }
  .toolbar-title { font-size: 22px; }
  #sidebar { width: 320px; }
  #canvas-container, #diagram-panel { left: 320px; }
}