/* ========================================================
   SlideStudio: Canva-Style Visual Slide Editor & Canvas Engine
   (Lucide Icons Standard, Pixel-Perfect Canvas, & Stealth Presenter)
   ======================================================== */

:root {
  --canva-primary: #120E6A;
  --canva-primary-deep: #0D0A50;
  --canva-accent: #2563EB;
  --canva-accent-light: #EFF6FF;
  --canva-gold: #D4A729;
  --canva-gold-deep: #B38918;
  --canva-gold-light: #FAF3E0;
  --canva-surface: #FFFFFF;
  --canva-bg: #EAECEF;
  --canva-border: #E2E4EA;
  --canva-text: #2B2C30;
  --canva-text-sub: #595C66;
  --canva-text-dim: #8D919D;
  --canva-shadow-sm: 0 2px 6px rgba(0,0,0,0.06);
  --canva-shadow-md: 0 6px 18px rgba(0,0,0,0.09);
  --canva-shadow-lg: 0 12px 32px rgba(18,14,106,0.15);
}

/* Lucide アイコン共通スタイル */
.lucide-icon, svg.lucide {
  display: inline-block;
  vertical-align: middle;
  stroke-width: 2.2px;
}

/* ========================================================
   1. エディター全体のレイアウト
   ======================================================== */
body.mode-edit, body.mode-comment {
  background: var(--canva-bg) !important;
  overflow: hidden !important;
  user-select: none;
}

body.mode-comment .s {
  cursor: crosshair !important;
}

body.mode-comment .s * {
  cursor: crosshair !important;
}

.studio-canvas-stage {
  position: fixed;
  top: 50px;
  left: 280px;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  z-index: 100;
  transition: all 0.2s ease;
}

body.mode-present .studio-canvas-stage {
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

/* スライドキャンバスのシャドウ（エディター時） */
body.mode-edit .s, body.mode-comment .s {
  box-shadow: 0 12px 40px rgba(0,0,0,0.18), 0 2px 8px rgba(0,0,0,0.08) !important;
  border-radius: 6px;
}

/* ========================================================
   2. 上部 Canva風コンテキストツールバー
   ======================================================== */
.studio-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 50px;
  background: #FFFFFF;
  border-bottom: 1px solid var(--canva-border);
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Zen Kaku Gothic New", sans-serif;
  user-select: none;
}

.studio-topbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.studio-app-brand {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 900;
  font-size: 13px;
  color: var(--canva-primary);
  letter-spacing: -0.01em;
  padding-right: 12px;
  border-right: 1px solid var(--canva-border);
}

.studio-history-group {
  display: flex;
  align-items: center;
  gap: 4px;
  background: #F1F3F7;
  padding: 3px 6px;
  border-radius: 8px;
}

.studio-btn-undo, .studio-btn-redo {
  border: 1px solid var(--canva-border);
  background: #FFFFFF;
  color: var(--canva-text);
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 11.5px;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: all 0.15s ease;
}

.studio-btn-undo:hover, .studio-btn-redo:hover {
  background: #F8F9FA;
  border-color: var(--canva-primary);
  color: var(--canva-primary);
}

.studio-btn-reset-slide {
  border: 1px solid #FCA5A5;
  background: #FEF2F2;
  color: #DC2626;
  padding: 4px 9px;
  border-radius: 6px;
  font-size: 11.5px;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: all 0.15s ease;
}

.studio-btn-reset-slide:hover {
  background: #FEE2E2;
  border-color: #EF4444;
  color: #B91C1C;
}

.studio-topbar-center {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  justify-content: center;
}

.studio-context-tools {
  display: flex;
  align-items: center;
  gap: 4px;
  background: #F8F9FA;
  padding: 3px 8px;
  border-radius: 8px;
  border: 1px solid var(--canva-border);
}

.studio-tool-group {
  display: flex;
  align-items: center;
  gap: 2px;
}

.studio-t-btn {
  border: 1px solid transparent;
  background: transparent;
  height: 28px;
  min-width: 28px;
  padding: 0 6px;
  border-radius: 6px;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--canva-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: all 0.15s ease;
}

.studio-t-btn:hover {
  background: #ECEEF2;
  color: var(--canva-primary);
}

.studio-t-btn.active {
  background: var(--canva-primary);
  color: #FFFFFF;
}

.studio-t-divider {
  width: 1px;
  height: 16px;
  background: var(--canva-border);
  margin: 0 4px;
}

.studio-topbar-right {
  display: flex;
  align-items: center;
  gap: 6px;
}

.studio-btn-present {
  background: var(--canva-primary);
  color: #FFFFFF;
  border: none;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background 0.15s ease;
}

.studio-btn-present:hover {
  background: var(--canva-primary-deep);
}

.studio-btn-gold {
  background: var(--canva-gold);
  color: #FFFFFF;
  border: none;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 11.5px;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: background 0.15s ease;
}

.studio-btn-gold:hover {
  background: var(--canva-gold-deep);
}

/* ========================================================
   3. 左サイドバー
   ======================================================== */
.studio-sidebar-left {
  position: fixed;
  top: 50px;
  left: 0;
  bottom: 0;
  width: 280px;
  background: #FFFFFF;
  border-right: 1px solid var(--canva-border);
  z-index: 9990;
  display: flex;
  flex-direction: column;
  box-shadow: 2px 0 8px rgba(0,0,0,0.03);
}

.studio-nav-tabs {
  display: flex;
  background: #FAFBFD;
  border-bottom: 1px solid var(--canva-border);
  padding: 4px 6px;
  gap: 4px;
}

.studio-nav-tab {
  flex: 1;
  padding: 6px 2px;
  border: none;
  background: transparent;
  border-radius: 6px;
  font-size: 10.5px;
  font-weight: 700;
  color: var(--canva-text-sub);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  transition: all 0.15s ease;
}

.studio-nav-tab:hover {
  background: #ECEEF2;
  color: var(--canva-primary);
}

.studio-nav-tab.active {
  background: #FFFFFF;
  color: var(--canva-primary);
  box-shadow: var(--canva-shadow-sm);
  font-weight: 800;
}

.studio-tab-content {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.studio-add-section-title {
  font-size: 11px;
  font-weight: 800;
  color: var(--canva-primary);
  letter-spacing: 0.02em;
  margin-bottom: 2px;
}

.studio-add-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.studio-add-card {
  padding: 10px 6px;
  background: #F8F9FA;
  border: 1px solid var(--canva-border);
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  text-align: center;
  transition: all 0.15s ease;
}

.studio-add-card:hover {
  background: var(--canva-gold-light);
  border-color: var(--canva-gold);
  transform: translateY(-1px);
}

.studio-add-card-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--canva-text);
}

.studio-add-text-btn {
  width: 100%;
  padding: 8px 10px;
  background: #F8F9FA;
  border: 1px solid var(--canva-border);
  border-radius: 6px;
  text-align: left;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.studio-add-text-btn:hover {
  background: var(--canva-accent-light);
  border-color: var(--canva-accent);
}

.studio-slide-thumb-card {
  padding: 6px 8px;
  background: #F8F9FA;
  border: 1.5px solid var(--canva-border);
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}

.studio-slide-thumb-card:hover {
  background: var(--canva-gold-light);
  border-color: var(--canva-gold);
}

.studio-slide-thumb-card.active {
  background: #FFFFFF;
  border-color: var(--canva-primary);
  box-shadow: 0 0 0 2px rgba(18,14,106,0.15);
}

.studio-slide-thumb-num {
  font-size: 9.5px;
  font-weight: 900;
  color: var(--canva-text-dim);
  font-family: monospace;
}

.studio-slide-thumb-title {
  font-size: 10.5px;
  font-weight: 700;
  color: var(--canva-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

/* ========================================================
   4. 指示ピン＆コメントシステム
   ======================================================== */
.studio-pin {
  position: absolute;
  width: 26px;
  height: 26px;
  background: var(--canva-primary);
  color: #FFFFFF;
  border: 2px solid #FFFFFF;
  border-radius: 50%;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 900;
  cursor: pointer;
  z-index: 1000;
  transform: translate(-50%, -50%);
  transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
}

.studio-pin:hover, .studio-pin.active {
  background: #D93838;
  transform: translate(-50%, -50%) scale(1.2);
  box-shadow: 0 6px 16px rgba(217, 56, 56, 0.4);
}

.studio-pin-popover {
  position: absolute;
  width: 240px;
  background: #FFFFFF;
  border: 1px solid var(--canva-border);
  border-radius: 8px;
  box-shadow: var(--canva-shadow-lg);
  padding: 10px;
  z-index: 1050;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  user-select: auto;
}

.studio-pin-popover-title {
  font-size: 11px;
  font-weight: 800;
  color: var(--canva-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.studio-pin-textarea {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid var(--canva-border);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 11.5px;
  resize: vertical;
  min-height: 52px;
  font-family: inherit;
  outline: none;
}

.studio-pin-textarea:focus {
  border-color: var(--canva-accent);
  box-shadow: 0 0 0 2px var(--canva-accent-light);
}

.studio-pin-popover-actions {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
}

.studio-pin-save-btn {
  background: var(--canva-primary);
  color: #FFFFFF;
  border: none;
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
}

.studio-pin-save-btn:hover {
  background: var(--canva-primary-deep);
}

.studio-pin-cancel-btn {
  background: #ECEEF2;
  color: var(--canva-text);
  border: none;
  border-radius: 4px;
  padding: 4px 8px;
  font-size: 11px;
  cursor: pointer;
}

.studio-comment-card {
  background: #FFFFFF;
  border: 1px solid var(--canva-border);
  border-radius: 8px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 11.5px;
  transition: all 0.15s ease;
  cursor: pointer;
}

.studio-comment-card:hover {
  border-color: var(--canva-accent);
  background: var(--canva-accent-light);
}

.studio-comment-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.studio-comment-badge {
  background: var(--canva-primary);
  color: #FFFFFF;
  font-size: 10px;
  font-weight: 800;
  padding: 1px 6px;
  border-radius: 10px;
}

.studio-comment-del-btn {
  background: transparent;
  border: none;
  color: var(--canva-text-dim);
  cursor: pointer;
  font-size: 12px;
  padding: 0 2px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.studio-comment-del-btn:hover {
  color: #DC2626;
}

.studio-comment-text {
  color: var(--canva-text);
  line-height: 1.4;
  word-break: break-all;
}

/* ========================================================
   5. 選択ボックス＆リサイズハンドル
   ======================================================== */
.canva-selection-overlay {
  position: absolute;
  border: 1.5px solid var(--canva-accent);
  pointer-events: none;
  z-index: 9990;
  box-sizing: border-box;
}

.canva-handle {
  position: absolute;
  width: 8px;
  height: 8px;
  background: #FFFFFF;
  border: 1.5px solid var(--canva-accent);
  border-radius: 50%;
  pointer-events: auto;
  box-sizing: border-box;
  z-index: 9995;
}

.canva-handle-nw { top: -4px; left: -4px; cursor: nwse-resize; }
.canva-handle-ne { top: -4px; right: -4px; cursor: nesw-resize; }
.canva-handle-se { bottom: -4px; right: -4px; cursor: nwse-resize; }
.canva-handle-sw { bottom: -4px; left: -4px; cursor: nesw-resize; }

.canva-handle-n { top: -4px; left: 50%; transform: translateX(-50%); cursor: ns-resize; border-radius: 1px; }
.canva-handle-s { bottom: -4px; left: 50%; transform: translateX(-50%); cursor: ns-resize; border-radius: 1px; }
.canva-handle-e { top: 50%; right: -4px; transform: translateY(-50%); cursor: ew-resize; border-radius: 1px; }
.canva-handle-w { top: 50%; left: -4px; transform: translateY(-50%); cursor: ew-resize; border-radius: 1px; }

/* スマートガイド線 */
.studio-guide-x, .studio-guide-y {
  position: absolute;
  pointer-events: none;
  z-index: 9980;
  display: none;
}
.studio-guide-x {
  top: 0; bottom: 0;
  width: 1px;
  border-left: 1px dashed #EC4899;
}
.studio-guide-y {
  left: 0; right: 0;
  height: 1px;
  border-top: 1px dashed #EC4899;
}

/* ========================================================
   6. インライン直接編集
   ======================================================== */
[contenteditable="true"] {
  outline: 2px solid var(--canva-gold) !important;
  outline-offset: 2px;
  background: rgba(250, 243, 224, 0.4) !important;
  border-radius: 3px;
  cursor: text !important;
  user-select: text !important;
}

/* ========================================================
   7. プレゼンモード専用UI（ステルス）
   ======================================================== */
.present-exit-btn {
  position: fixed;
  top: 14px;
  right: 16px;
  background: rgba(18, 14, 106, 0.88);
  backdrop-filter: blur(8px);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 11.5px;
  font-weight: 700;
  cursor: pointer;
  z-index: 10000;
  display: flex;
  align-items: center;
  gap: 5px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body.mode-present .present-exit-btn:hover,
body.mode-present.hover-top-right .present-exit-btn {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.present-exit-btn:hover {
  background: #0D0A50;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
  border-color: #D4A729;
}

.present-nav-bar {
  position: fixed;
  bottom: 14px;
  left: 16px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border: 1px solid var(--canva-border);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  padding: 3px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  color: var(--canva-primary);
  z-index: 10000;
  display: flex;
  align-items: center;
  gap: 6px;
  user-select: none;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

body.mode-present .present-nav-bar:hover,
body.mode-present.hover-bottom-left .present-nav-bar {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.present-nav-btn {
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 2px 5px;
  border-radius: 4px;
  font-weight: 800;
  font-size: 11.5px;
  color: var(--canva-primary);
  transition: background 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.present-nav-btn:hover {
  background: #ECEEF2;
}

body.mode-present .studio-topbar,
body.mode-present .studio-sidebar-left,
body.mode-present .canva-selection-overlay,
body.mode-present .studio-pin,
body.mode-present .studio-pin-popover,
body.mode-present .nav-hint {
  display: none !important;
}

/* トースト通知 */
.studio-toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(50px);
  background: #120E6A;
  color: #FFFFFF;
  padding: 7px 18px;
  border-radius: 30px;
  font-size: 11.5px;
  font-weight: 700;
  box-shadow: var(--canva-shadow-lg);
  z-index: 10000;
  opacity: 0;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  align-items: center;
  gap: 6px;
  pointer-events: none;
}

.studio-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

@media print {
  .studio-topbar,
  .studio-sidebar-left,
  .canva-selection-overlay,
  .studio-pin,
  .studio-pin-popover,
  .present-exit-btn,
  .present-nav-bar,
  .studio-toast {
    display: none !important;
  }
}