:root {
  --bg-0: #0f172a;
  --bg-1: #1e293b;
  --panel: #0b2248;
  --panel-2: #123564;
  --ink: #e8f0ff;
  --muted: #9bb2d8;
  --accent: #2ee6ff;
  --btn: #153c72;
  --btn-border: #2b5e9e;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #091328, #081022 65%, #060d1c);
}

body {
  display: grid;
  grid-template-rows: auto 1fr auto;
  overflow: hidden;
}

.toolbar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 12px;
  align-items: center;
  padding: 10px 14px;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border-bottom: 1px solid #28558e;
}

.left,
.center,
.right {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.right {
  justify-content: flex-end;
}

.btn {
  background: var(--btn);
  border: 1px solid var(--btn-border);
  color: var(--ink);
  padding: 8px 12px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 14px;
}

.btn:hover {
  filter: brightness(1.1);
}

.btn:active {
  transform: translateY(1px);
}

.btn-small {
  padding: 6px 10px;
  font-size: 12px;
}

.btn-toggle[aria-pressed="true"] {
  background: #166534;
  border-color: #22c55e;
}

#zoom-label {
  min-width: 54px;
  text-align: center;
  font-weight: 700;
  color: var(--accent);
}

.workspace {
  min-height: 0;
  display: flex;
}

.library-panel {
  width: 0;
  opacity: 0;
  pointer-events: none;
  overflow: hidden;
  background: linear-gradient(180deg, #0c2146, #08152e);
  border-right: 0 solid #28558e;
  transition: width 0.28s ease, opacity 0.2s ease, border-right-width 0.2s ease;
  display: flex;
  flex-direction: column;
}

.workspace.library-open .library-panel {
  width: 360px;
  min-width: 360px;
  opacity: 1;
  pointer-events: auto;
  border-right-width: 1px;
}

.media-panel {
  width: 0;
  opacity: 0;
  pointer-events: none;
  overflow: hidden;
  background: linear-gradient(180deg, #0d1f3f, #081327);
  border-left: 0 solid #28558e;
  transition: width 0.28s ease, opacity 0.2s ease, border-left-width 0.2s ease;
  display: flex;
  flex-direction: column;
}

.workspace.media-open .media-panel {
  width: 360px;
  min-width: 360px;
  opacity: 1;
  pointer-events: auto;
  border-left-width: 1px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid #28558e;
}

.panel-controls,
.upload-block {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(147, 197, 253, 0.2);
  display: grid;
  gap: 8px;
}

.upload-title {
  font-size: 13px;
  font-weight: 700;
  color: #dbeafe;
}

.panel-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

.panel-controls input,
.panel-controls select,
.upload-block input,
.upload-block select {
  width: 100%;
  min-width: 0;
  border-radius: 8px;
  border: 1px solid #2b5e9e;
  background: #0e2b58;
  color: #e8f0ff;
  padding: 8px 10px;
  font-size: 13px;
}

.library-list {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 10px;
  display: grid;
  gap: 10px;
}

.library-item {
  display: grid;
  grid-template-columns: 72px 1fr auto;
  gap: 10px;
  align-items: center;
  background: rgba(2, 6, 23, 0.35);
  border: 1px solid rgba(147, 197, 253, 0.2);
  border-radius: 12px;
  padding: 8px;
}

.library-thumb {
  width: 72px;
  height: 56px;
  border-radius: 8px;
  border: 1px solid rgba(147, 197, 253, 0.28);
  background: linear-gradient(180deg, #10254a, #0a1f3e);
  object-fit: cover;
}

.library-meta {
  min-width: 0;
}

.library-title {
  font-size: 13px;
  font-weight: 700;
  color: #f8fafc;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.library-sub {
  margin-top: 3px;
  font-size: 11px;
  color: #afc6ec;
}

.library-pills {
  margin-top: 6px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.pill {
  font-size: 10px;
  border: 1px solid rgba(147, 197, 253, 0.35);
  border-radius: 999px;
  padding: 1px 6px;
  color: #dbeafe;
}

.library-empty {
  font-size: 13px;
  color: #9bb2d8;
  padding: 8px;
}

.hint-list {
  color: #9bb2d8;
  font-size: 12px;
}

.stage-wrap {
  padding: 14px;
  min-height: 0;
  flex: 1;
  min-width: 0;
}

/* Fondo con profundidad 2.5D */
.preview-stage {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 18px;
  overflow: hidden;
  background: radial-gradient(circle at 50% 50%, var(--bg-1) 0%, var(--bg-0) 100%);
  border: 1px solid rgba(147, 197, 253, 0.2);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.04),
    inset 0 -120px 120px rgba(255, 255, 255, 0.03),
    0 20px 60px rgba(2, 8, 23, 0.7);
  perspective: 1200px;
}

.preview-stage::before {
  content: "";
  position: absolute;
  left: -40%;
  top: -35%;
  width: 180%;
  height: 180%;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  transform: rotateX(62deg);
  transform-origin: 50% 70%;
  opacity: 0.35;
}

#bg-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
  pointer-events: none;
}

#scene {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.media-overlay {
  position: absolute;
  inset: 16px;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(5, 10, 25, 0.88), rgba(3, 8, 20, 0.88));
  border: 1px solid rgba(147, 197, 253, 0.35);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
  display: grid;
  grid-template-rows: auto 1fr;
  overflow: hidden;
  z-index: 4;
}

.media-overlay[hidden] {
  display: none !important;
}

.media-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(147, 197, 253, 0.25);
  background: rgba(15, 35, 70, 0.6);
}

#media-title {
  font-size: 14px;
  font-weight: 700;
  color: #dbeafe;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.media-body {
  position: relative;
  min-height: 0;
  display: grid;
  place-items: center;
  padding: 12px;
}

#media-image,
#media-video,
#media-model-viewer,
#media-3d-canvas {
  max-width: 100%;
  max-height: 100%;
  border-radius: 12px;
  border: 1px solid rgba(147, 197, 253, 0.22);
  background: rgba(2, 6, 23, 0.5);
}

#media-video {
  width: min(100%, 1200px);
  height: min(100%, 720px);
}

#media-model-viewer,
#media-3d-canvas {
  width: min(100%, 1280px);
  height: min(100%, 760px);
}

.sticker {
  filter: drop-shadow(0 14px 22px rgba(0, 0, 0, 0.45)) drop-shadow(0 4px 8px rgba(0, 0, 0, 0.25));
  transition: transform 0.28s ease, filter 0.28s ease;
}

.sticker:hover {
  filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.58)) drop-shadow(0 6px 10px rgba(0, 0, 0, 0.3));
}

.statusbar {
  padding: 8px 12px;
  background: #0a1f41;
  border-top: 1px solid #28558e;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 1200px) {
  .toolbar {
    grid-template-columns: 1fr;
  }

  .right {
    justify-content: flex-start;
  }

  .workspace.library-open .library-panel {
    width: 100%;
    min-width: 0;
    position: absolute;
    z-index: 20;
    inset: 52px 8px auto 8px;
    max-height: 68vh;
    border: 1px solid #28558e;
    border-radius: 12px;
  }

  .workspace.media-open .media-panel {
    width: 100%;
    min-width: 0;
    position: absolute;
    z-index: 20;
    inset: 52px 8px auto 8px;
    max-height: 68vh;
    border: 1px solid #28558e;
    border-radius: 12px;
  }
}