/* ══════════════════════════════════════════
   FORGE — Code Playground
   style.css
   ══════════════════════════════════════════ */

/* ─── 1. Tokens & Variables ─── */
:root {
  /* Dark theme (default) */
  --bg-base:       #0d0e11;
  --bg-surface:    #14151a;
  --bg-raised:     #1c1e26;
  --bg-hover:      #242630;
  --bg-active:     #2c2f3d;

  --border:        #2a2d3a;
  --border-subtle: #1e2028;

  --text-primary:  #e8eaf0;
  --text-secondary:#8b8fa8;
  --text-muted:    #505468;
  --text-ghost:    #3a3d4d;

  --accent:        #7c6dfa;       /* purple-ish */
  --accent-glow:   rgba(124, 109, 250, 0.18);
  --accent-text:   #a99bff;

  --dot-html:      #f9826c;
  --dot-css:       #58a6ff;
  --dot-js:        #f9c943;

  --log-color:     #8b8fa8;
  --warn-color:    #f9c943;
  --error-color:   #ff6b6b;

  --run-btn:       #7c6dfa;
  --run-btn-hover: #9080ff;

  --topbar-h:      46px;
  --console-collapsed: 34px;

  --font-code:     'JetBrains Mono', monospace;
  --font-ui:       'Syne', sans-serif;

  --radius-sm:     4px;
  --radius-md:     6px;
  --radius-lg:     10px;

  --transition:    150ms ease;
}

[data-theme="light"] {
  --bg-base:       #f0f1f5;
  --bg-surface:    #fafafa;
  --bg-raised:     #ffffff;
  --bg-hover:      #ececf0;
  --bg-active:     #e2e2e8;

  --border:        #d8d9e0;
  --border-subtle: #eaeaee;

  --text-primary:  #1a1b22;
  --text-secondary:#5a5d70;
  --text-muted:    #9ea0ad;
  --text-ghost:    #c8c9d0;

  --accent:        #6355e8;
  --accent-glow:   rgba(99, 85, 232, 0.12);
  --accent-text:   #6355e8;

  --log-color:     #5a5d70;
  --warn-color:    #c08000;
  --error-color:   #d93025;
}

/* ─── 2. Reset & Base ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  width: 100%;
  overflow: hidden;
  font-family: var(--font-ui);
  background: var(--bg-base);
  color: var(--text-primary);
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
}

button {
  font-family: var(--font-ui);
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: all var(--transition);
}

/* ─── 3. Layout Shell ─── */
.topbar {
  height: var(--topbar-h);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 8px;
  position: relative;
  z-index: 100;
}

.workspace {
  display: flex;
  height: calc(100vh - var(--topbar-h) - var(--console-collapsed));
  overflow: hidden;
  transition: height var(--transition);
}

/* ─── 4. Top Bar Sections ─── */
.topbar-left, .topbar-right {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
}

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

.topbar-center {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 6px;
  padding-right: 12px;
  border-right: 1px solid var(--border);
  margin-right: 4px;
}

.logo-icon {
  font-size: 18px;
  color: var(--accent);
  line-height: 1;
  animation: spin-hex 10s linear infinite;
}

@keyframes spin-hex {
  from { filter: hue-rotate(0deg); }
  to   { filter: hue-rotate(360deg); }
}

.logo-text {
  font-size: 15px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

/* ─── 5. Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  transition: all var(--transition);
}

.btn-ghost {
  color: var(--text-secondary);
  background: transparent;
}

.btn-ghost:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.btn-ghost:active { background: var(--bg-active); }

.btn-run {
  background: var(--run-btn);
  color: #fff;
  padding: 5px 14px;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 12px var(--accent-glow);
  font-size: 12px;
}

.btn-run:hover {
  background: var(--run-btn-hover);
  box-shadow: 0 0 18px rgba(124,109,250,0.3);
  transform: translateY(-1px);
}

.btn-run:active { transform: translateY(0); }

.btn.icon-only { padding: 5px 7px; }

button:disabled { opacity: 0.3; cursor: not-allowed; }

/* ─── 6. Toggle ─── */
.toggle-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  user-select: none;
}

.toggle-wrap input { display: none; }

.toggle-track {
  width: 30px;
  height: 16px;
  background: var(--border);
  border-radius: 99px;
  position: relative;
  transition: background var(--transition);
}

.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 12px;
  height: 12px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: transform var(--transition), background var(--transition);
}

.toggle-wrap input:checked ~ .toggle-track { background: var(--accent); }
.toggle-wrap input:checked ~ .toggle-track .toggle-thumb {
  transform: translateX(14px);
  background: #fff;
}

.toggle-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}

/* ─── 7. Dropdowns ─── */
.templates-wrap, .libraries-wrap { position: relative; }

.dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 160px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 30px rgba(0,0,0,0.3);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-4px);
  transition: all 120ms ease;
  overflow: hidden;
}

.dropdown.open {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.dropdown-right { left: auto; right: 0; }

.dropdown-item {
  padding: 8px 14px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition);
  font-family: var(--font-ui);
}

.dropdown-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  padding-left: 18px;
}

.dropdown-check {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: background var(--transition);
  font-family: var(--font-ui);
}

.dropdown-check:hover { background: var(--bg-hover); color: var(--text-primary); }

.dropdown-check input[type="checkbox"] {
  accent-color: var(--accent);
  width: 13px;
  height: 13px;
  cursor: pointer;
}

/* ─── 8. Editor Panel ─── */
.editor-panel {
  display: flex;
  flex-direction: column;
  width: 46%;
  min-width: 200px;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  overflow: hidden;
}

/* Tab bar */
.tab-bar {
  display: flex;
  align-items: stretch;
  background: var(--bg-base);
  border-bottom: 1px solid var(--border);
  min-height: 36px;
  padding: 0 4px;
  gap: 2px;
  flex-shrink: 0;
}

.tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 14px;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--text-muted);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  position: relative;
  letter-spacing: 0.04em;
  transition: all var(--transition);
  border-bottom: 2px solid transparent;
}

.tab:hover { color: var(--text-secondary); background: var(--bg-hover); }

.tab.active {
  color: var(--text-primary);
  border-bottom-color: var(--accent);
  background: var(--bg-surface);
}

.tab-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot-html { background: var(--dot-html); }
.dot-css  { background: var(--dot-css);  }
.dot-js   { background: var(--dot-js);   }

.tab-spacer { flex: 1; }

.tab-action {
  align-self: center;
  color: var(--text-muted);
}

/* Editor panes */
.editor-panes {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.editor-pane {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: row;
  background: var(--bg-surface);
}

.editor-pane.active {
  display: flex;
  animation: fadeIn 120ms ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Line gutter */
.line-gutter {
  width: 44px;
  padding: 14px 8px 14px 0;
  text-align: right;
  font-family: var(--font-code);
  font-size: 12px;
  color: var(--text-ghost);
  line-height: 1.7;
  background: var(--bg-base);
  border-right: 1px solid var(--border-subtle);
  overflow: hidden;
  user-select: none;
  flex-shrink: 0;
}

/* Code textarea */
.code-area {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  font-family: var(--font-code);
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-primary);
  padding: 14px 16px;
  tab-size: 2;
  white-space: pre;
  overflow-wrap: normal;
  overflow-x: auto;
  overflow-y: auto;
  caret-color: var(--accent);
  letter-spacing: 0.01em;
}

.code-area::selection {
  background: var(--accent-glow);
}

.code-area::-webkit-scrollbar { width: 6px; height: 6px; }
.code-area::-webkit-scrollbar-track { background: transparent; }
.code-area::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ─── 9. Resizer ─── */
.resizer {
  width: 5px;
  background: var(--border);
  cursor: col-resize;
  flex-shrink: 0;
  position: relative;
  transition: background var(--transition);
}

.resizer::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 1px;
  height: 32px;
  background: var(--text-ghost);
  border-radius: 2px;
}

.resizer:hover, .resizer.dragging {
  background: var(--accent);
}

/* ─── 10. Preview Panel ─── */
.preview-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-base);
  overflow: hidden;
}

.preview-bar {
  height: 36px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 8px 0 12px;
  gap: 8px;
  flex-shrink: 0;
}

.preview-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  flex: 1;
}

.preview-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #3ddc84;
  box-shadow: 0 0 6px rgba(61, 220, 132, 0.5);
  animation: pulse-dot 2s ease infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* Preview mode buttons */
.preview-modes {
  display: flex;
  gap: 2px;
}

.mode-btn {
  padding: 4px 6px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  transition: all var(--transition);
}

.mode-btn:hover { background: var(--bg-hover); color: var(--text-secondary); }

.mode-btn.active {
  background: var(--bg-active);
  color: var(--accent-text);
}

/* iframe wrapper */
.iframe-wrap {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  overflow: auto;
  padding: 0;
  background: var(--bg-base);
  transition: all var(--transition);
}

.iframe-wrap.mode-desktop  { padding: 0; }
.iframe-wrap.mode-tablet   { padding: 12px; background: var(--bg-raised); }
.iframe-wrap.mode-mobile   { padding: 16px; background: var(--bg-raised); }

#preview {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
  background: #fff;
  transition: width var(--transition), box-shadow var(--transition);
}

.iframe-wrap.mode-tablet #preview {
  width: 768px;
  height: 100%;
  min-height: 500px;
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.iframe-wrap.mode-mobile #preview {
  width: 375px;
  height: 100%;
  min-height: 600px;
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

/* ─── 11. Console Panel ─── */
.console-panel {
  height: var(--console-collapsed);
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: height 220ms cubic-bezier(0.4,0,0.2,1);
  position: relative;
  z-index: 50;
}

.console-panel.open {
  height: 200px;
}

.console-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px;
  height: var(--console-collapsed);
  flex-shrink: 0;
  cursor: pointer;
}

.console-bar:hover { background: var(--bg-hover); }

.console-bar-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.console-bar-right {
  display: flex;
  align-items: center;
  gap: 4px;
}

.console-toggle-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}

.console-filters {
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.console-panel.open .console-filters {
  opacity: 1;
  pointer-events: all;
}

.filter-btn {
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 10.5px;
  font-weight: 600;
  color: var(--text-muted);
  transition: all var(--transition);
}

.filter-btn:hover { background: var(--bg-hover); color: var(--text-secondary); }

.filter-btn.active {
  background: var(--bg-active);
  color: var(--text-primary);
}

.log-count {
  font-size: 10px;
  font-weight: 700;
  background: var(--bg-active);
  color: var(--text-secondary);
  border-radius: 99px;
  padding: 1px 6px;
  min-width: 18px;
  text-align: center;
  font-family: var(--font-code);
}

/* Console output */
.console-output {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
  font-family: var(--font-code);
  font-size: 11.5px;
}

.console-output::-webkit-scrollbar { width: 4px; }
.console-output::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.log-entry {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 3px 16px;
  transition: background var(--transition);
}

.log-entry:hover { background: var(--bg-hover); }

.log-entry.log   .log-icon { color: var(--log-color);   }
.log-entry.warn  .log-icon { color: var(--warn-color);   }
.log-entry.error .log-icon { color: var(--error-color);  }

.log-entry.warn  { border-left: 2px solid var(--warn-color);  }
.log-entry.error { border-left: 2px solid var(--error-color); }

.log-icon { font-size: 9px; flex-shrink: 0; }

.log-text {
  flex: 1;
  color: var(--text-secondary);
  word-break: break-all;
}

.log-entry.warn  .log-text { color: var(--warn-color);  }
.log-entry.error .log-text { color: var(--error-color); }

.log-time {
  color: var(--text-ghost);
  font-size: 10px;
  flex-shrink: 0;
}

/* ─── 12. Toast ─── */
.toast {
  position: fixed;
  bottom: 60px;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--bg-raised);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 8px 16px;
  font-size: 12px;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  opacity: 0;
  pointer-events: none;
  transition: all 200ms ease;
  z-index: 9999;
  white-space: nowrap;
}

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

/* ─── 13. Theme Icons ─── */
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="dark"] .icon-sun  { display: block; }
[data-theme="light"] .icon-sun  { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* ─── 14. Saved indicator on tab bar ─── */
.save-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-left: auto;
  animation: fadeIn 200ms ease;
}

/* ─── 15. Scrollbars (global) ─── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-ghost); }

/* ─── 16. Responsive ─── */
@media (max-width: 768px) {
  .workspace {
    flex-direction: column;
  }

  .editor-panel {
    width: 100%;
    height: 50%;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .resizer {
    display: none;
  }

  .preview-panel {
    height: 50%;
  }

  .topbar-right .btn-ghost span:not(:empty) { display: none; }

  .logo-text { display: none; }

  .preview-modes { display: none; }
}

@media (max-width: 480px) {
  .toggle-label { display: none; }
  .topbar { padding: 0 8px; gap: 4px; }
}

/* ─── 17. Focus Styles ─── */
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ─── 18. Intro pulse on editor ─── */
.code-area:focus {
  box-shadow: inset 3px 0 0 var(--accent-glow);
}