/* ============================================================
   CUBO INMERSIVO — Estilos compartidos
   ============================================================ */

:root {
  --bg: #0b0f12;
  --bg-elev: #131920;
  --bg-elev-2: #1c242e;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #e5e7eb;
  --text-muted: #9aa3b0;
  --text-dim: #6b7280;
  --primary: #6366f1;
  --primary-hover: #818cf8;
  --success: #10b981;
  --danger: #ef4444;
  --warn: #f59e0b;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --font: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }
h1, h2, h3, h4 { margin: 0; font-weight: 700; color: #fff; }
h1 { font-size: 28px; }
h2 { font-size: 22px; }
h3 { font-size: 18px; }
p { margin: 0; color: var(--text-muted); line-height: 1.5; }
img, video { display: block; max-width: 100%; }
button { font-family: inherit; }
input, textarea, select {
  font-family: inherit;
  font-size: 14px;
  background: var(--bg-elev);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  width: 100%;
  outline: none;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.18);
}
label { font-size: 13px; color: var(--text-muted); display: block; margin-bottom: 6px; font-weight: 500; }
hr { border: 0; border-top: 1px solid var(--line); margin: 20px 0; }
.muted { color: var(--text-muted); font-size: 13px; }
.error { color: var(--danger); font-size: 13px; }
.success { color: var(--success); font-size: 13px; }
.hidden { display: none !important; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--bg-elev);
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all 160ms ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn:hover { background: var(--bg-elev-2); border-color: var(--line-strong); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn-danger {
  background: transparent;
  border-color: rgba(239,68,68,0.4);
  color: #fca5a5;
}
.btn-danger:hover { background: rgba(239,68,68,0.12); border-color: var(--danger); color: #fff; }
.btn-ghost {
  background: transparent;
  border-color: transparent;
}
.btn-ghost:hover { background: var(--bg-elev); }
.btn-sm { padding: 6px 10px; font-size: 12px; }
.btn-block { width: 100%; }
.btn-icon {
  padding: 8px;
  width: 36px;
  height: 36px;
}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(11, 15, 18, 0.85);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 16px;
  color: #fff;
}
.topbar-brand .logo {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, var(--primary), #ec4899);
  border-radius: 7px;
  display: grid;
  place-items: center;
  font-size: 16px;
}
.topbar-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.topbar-nav a {
  color: var(--text-muted);
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
}
.topbar-nav a:hover { background: var(--bg-elev); color: var(--text); }
.topbar-nav a.active { background: var(--bg-elev); color: #fff; }
.topbar-user {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Topbar dentro del viewer (fondo oscuro) */
.viewer-shell .topbar {
  background: transparent;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.viewer-shell .topbar-nav a { color: rgba(255,255,255,0.5); }
.viewer-shell .topbar-nav a:hover { background: rgba(255,255,255,0.06); color: #fff; }
.viewer-shell .topbar-nav a.active { background: rgba(255,255,255,0.08); color: #fff; }
.viewer-shell .topbar-brand { color: #fff; }

/* Admin link en topbar */
.admin-link {
  color: #fbbf24 !important;
}
.admin-link:hover {
  background: rgba(251, 191, 36, 0.12) !important;
  color: #fcd34d !important;
}
.role-badge {
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 13px;
  color: #fff;
}

/* ============================================================
   CONTAINER
   ============================================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px;
}
.container-sm { max-width: 480px; }
.container-md { max-width: 720px; }

/* ============================================================
   AUTH PAGES (login, register)
   ============================================================ */
.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 30% 20%, rgba(99,102,241,0.18), transparent 50%),
    radial-gradient(circle at 70% 80%, rgba(236,72,153,0.12), transparent 50%),
    var(--bg);
}
.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-lg);
}
.auth-card h1 { margin-bottom: 6px; }
.auth-card .muted { margin-bottom: 24px; }
.auth-card .form-group { margin-bottom: 16px; }
.auth-card .btn-primary { margin-top: 8px; }
.auth-card .auth-footer {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  text-align: center;
  font-size: 13px;
}

/* ============================================================
   DASHBOARD
   ============================================================ */
.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}
.dashboard-header p { margin-top: 4px; }
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}
.project-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 200ms ease;
  display: flex;
  flex-direction: column;
}
.project-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.project-card-cover {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #1f2937, #0f172a);
  position: relative;
  display: grid;
  place-items: center;
  border-bottom: 1px solid var(--line);
}
.project-card-cover .mini-cube {
  width: 80px; height: 80px;
  position: relative;
  transform-style: preserve-3d;
  transform: rotateX(-10deg) rotateY(20deg);
}
.project-card-cover .mini-face {
  position: absolute;
  width: 80px; height: 80px;
  border: 1px solid rgba(255,255,255,0.2);
  background-size: cover;
  background-position: center;
}
.project-card-cover .mini-face.front { transform: translateZ(40px); }
.project-card-cover .mini-face.right { transform: rotateY(90deg) translateZ(40px); }
.project-card-cover .mini-face.top { transform: rotateX(90deg) translateZ(40px); background: rgba(99,102,241,0.2); }
.project-card-cover .visibility-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(8px);
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}
.project-card-body { padding: 16px; flex: 1; display: flex; flex-direction: column; }
.project-card-body h3 { font-size: 16px; margin-bottom: 4px; }
.project-card-body .muted { font-size: 13px; margin-bottom: 12px; flex: 1; }
.progress-bar {
  height: 6px;
  background: var(--bg-elev-2);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 12px;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--success));
  transition: width 300ms ease;
}
.project-card-actions {
  display: flex;
  gap: 8px;
  margin-top: auto;
}
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.empty-state h3 { color: var(--text); margin-bottom: 8px; }
.empty-state .big-icon { font-size: 48px; margin-bottom: 12px; }

/* ============================================================
   CUBE 3D VIEWER
   ============================================================ */
.viewer-shell {
  min-height: 100vh;
  background: #050807;
  color: #fff;
}
.viewer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.viewer-header h2 { font-size: 16px; }
.viewer-header .muted { color: rgba(255,255,255,0.5); font-size: 12px; }
.viewer-body {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 24px;
  padding: 24px;
  max-width: 1400px;
  margin: 0 auto;
  transition: grid-template-columns 300ms ease;
}
/* Vista plana: sidebar colapsado, stage ocupa todo el ancho */
.viewer-body.flat-mode {
  grid-template-columns: 1fr;
  max-width: 1600px;
}
.viewer-body.flat-mode .viewer-sidebar {
  display: none;
}
.viewer-stage {
  position: relative;
  aspect-ratio: 16/9;
  background: radial-gradient(circle at center, #0a1410 0%, #050807 80%);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: grid;
  place-items: center;
  user-select: none;
  cursor: grab;
}
.viewer-stage.dragging { cursor: grabbing; }
.viewer-stage.flat-view { cursor: default; }

/* El cubo en si */
.cube-scene {
  --cube-zoom: 1;
  --room-w: min(72vh, calc(100vw - 380px) / 1.78);
  --room-h: calc(var(--room-w) * 9 / 16);
  --room-d: var(--room-w);
  width: var(--room-w);
  height: var(--room-h);
  position: relative;
  transform-style: preserve-3d;
  transform: scale(var(--cube-zoom)) rotateX(-10deg) rotateY(-8deg);
  transition: transform 80ms linear;
}
.cube-scene .room-face {
  position: absolute;
  width: var(--room-w);
  height: var(--room-h);
  left: 0;
  top: 0;
  background: #050807;
  border: 1px solid rgba(255,255,255,0.04);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.cube-scene .room-face video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.cube-scene .room-face .empty-face {
  color: rgba(255,255,255,0.3);
  font-size: 12px;
  text-align: center;
  padding: 12px;
}
/* Paredes laterales */
.cube-scene .room-front { transform: translateZ(calc(var(--room-d) * -1)); }
.cube-scene .room-left {
  transform-origin: left center;
  transform: rotateY(90deg);
}
.cube-scene .room-right {
  transform-origin: right center;
  transform: rotateY(-90deg);
}
/* Techo y piso con altura = profundidad completa */
.cube-scene .room-top,
.cube-scene .room-bottom {
  width: var(--room-w);
  height: var(--room-d);
}
.cube-scene .room-top {
  top: 0;
  transform-origin: top center;
  transform: rotateX(-90deg);
}
.cube-scene .room-bottom {
  top: var(--room-h);
  transform-origin: top center;
  transform: rotateX(-90deg);
}

/* Sidebar del viewer */
.viewer-sidebar {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.viewer-panel {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  padding: 16px;
}
.viewer-panel h3 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 12px;
  font-weight: 600;
}
.perspective-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}
.perspective-btn {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  color: #fff;
  padding: 10px 6px;
  font-size: 11px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: all 160ms ease;
}
.perspective-btn:hover { background: rgba(255,255,255,0.1); }
.perspective-btn.active {
  background: var(--primary);
  border-color: var(--primary);
}
.perspective-btn .arrow { font-size: 14px; }

.face-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
}
.face-cell {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  padding: 8px 4px;
  text-align: center;
  font-size: 10px;
  color: rgba(255,255,255,0.6);
  cursor: pointer;
  position: relative;
}
.face-cell.has-video {
  background: rgba(16,185,129,0.15);
  border-color: rgba(16,185,129,0.4);
  color: #6ee7b7;
}
.face-cell .face-icon { font-size: 14px; display: block; margin-bottom: 2px; }

.zoom-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.zoom-row input[type="range"] {
  flex: 1;
  padding: 0;
  height: 4px;
  background: rgba(255,255,255,0.08);
  border: none;
  -webkit-appearance: none;
}
.zoom-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
}

.video-controls {
  display: grid;
  grid-template-columns: 36px 36px 36px 1fr 50px;
  gap: 8px;
  align-items: center;
  margin-top: 12px;
}
.video-controls button {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 6px;
  cursor: pointer;
}
.video-controls button:hover { background: rgba(255,255,255,0.12); }
.video-controls input[type="range"] {
  height: 4px;
  background: rgba(255,255,255,0.08);
  border: none;
  padding: 0;
  -webkit-appearance: none;
}
.video-controls input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px; height: 12px;
  background: var(--primary);
  border-radius: 50%;
}
.video-time { font-size: 11px; color: rgba(255,255,255,0.5); text-align: right; font-variant-numeric: tabular-nums; }

/* Controles extra de reproduccion */
.video-extras {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 8px;
  align-items: center;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.video-extras button {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  color: #fff;
  border-radius: 6px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 11px;
  white-space: nowrap;
  transition: all 150ms ease;
}
.video-extras button:hover {
  background: rgba(99,102,241,0.2);
  border-color: var(--primary);
}
.video-extras button.active {
  background: var(--primary);
  border-color: var(--primary);
}
.video-extras select {
  background: rgba(0,0,0,0.3);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 12px;
  width: auto;
  cursor: pointer;
}
.video-extras .loop-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: rgba(255,255,255,0.7);
  cursor: pointer;
  justify-self: end;
}
.video-extras .loop-toggle input[type=checkbox] {
  width: auto;
  margin: 0;
  accent-color: var(--primary);
}

/* Indicador de carga mientras los videos cargan */
.cube-loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: rgba(255,255,255,0.6);
  font-size: 13px;
  background: rgba(0,0,0,0.3);
  z-index: 5;
  pointer-events: none;
}
.cube-loading.hidden { display: none; }
.cube-loading .spinner {
  width: 32px; height: 32px;
  border: 3px solid rgba(255,255,255,0.1);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Vista plana: las 5 caras desplegadas como cruz */
.viewer-stage.flat-view {
  display: grid !important;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: 1fr 2.5fr 1fr;  /* frente/laterales mas altas */
  gap: 8px;
  padding: 20px;
  place-items: stretch;
  background: #050807;
  perspective: none;
  aspect-ratio: auto;
  min-height: 85vh;
  height: 85vh;
}
.viewer-stage.flat-view #cubeScene {
  position: relative;
  width: 100% !important;
  height: 100% !important;
  transform: none !important;
  /* display: contents hace que los hijos (.room-face) sean hijos directos del grid padre */
  display: contents;
}
.viewer-stage.flat-view .room-face,
.cube-scene.flat-mode .room-face {
  position: relative;
  width: auto !important;
  height: auto !important;
  left: auto !important;
  top: auto !important;
  transform: none !important;
  border: 1px solid rgba(255,255,255,0.15);
  overflow: hidden;
}
.viewer-stage.flat-view .room-front { grid-column: 2; grid-row: 2; }
.viewer-stage.flat-view .room-left  { grid-column: 1; grid-row: 2; }
.viewer-stage.flat-view .room-right { grid-column: 3; grid-row: 2; }
.viewer-stage.flat-view .room-top   { grid-column: 2; grid-row: 1; }
.viewer-stage.flat-view .room-bottom{ grid-column: 2; grid-row: 3; }
.flat-label {
  position: absolute;
  top: 6px;
  left: 6px;
  background: rgba(0,0,0,0.7);
  color: #fff;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  z-index: 2;
  pointer-events: none;
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  display: grid;
  place-items: center;
  z-index: 100;
  padding: 24px;
}
.modal {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px;
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
}
.modal h2 { margin-bottom: 16px; }

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-elev-2);
  border: 1px solid var(--line);
  padding: 12px 18px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 200;
  font-size: 14px;
  animation: slideIn 200ms ease;
}
.toast.error { border-color: var(--danger); }
.toast.success { border-color: var(--success); }
@keyframes slideIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ============================================================
   EXPLORE (gallery)
   ============================================================ */
.explore-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .viewer-body { grid-template-columns: 1fr; }
  .viewer-sidebar { order: -1; }
}