:root {
  /* Minimalist Black & Grey Palette */
  --bg-color: #0a0a0a;           /* True Black Background */
  --nav-bg: #121212;            /* Deep Grey Navbar */
  --text-main: #ffffff;
  --text-muted: #888888;
  --accent-color: #10b981;       /* The "Highlight" only */
  --accent-hover: #059669;
  --border-color: #262626;       /* Subtle Grey border */
  --card-bg: #121212;
  --modal-bg: rgba(0, 0, 0, 0.95);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 8px 16px rgba(0, 0, 0, 0.8);
}

[data-theme='light'] {
  /* Light Theme Variables */
  --bg-color: #fafafa;
  --nav-bg: #0b0f19;             /* Nav strictly stays dark for contrast like Upstash */
  --text-main: #0f172a;
  --text-muted: #64748b;
  --accent-color: #10b981;
  --accent-hover: #059669;
  --border-color: #e2e8f0;
  --card-bg: #ffffff;
  --modal-bg: rgba(255, 255, 255, 0.85);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px 0 rgba(0, 0, 0, 0.05);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow: hidden;
}

.hidden { display: none !important; }

/* Modal Styling */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; width: 100vw; height: 100vh;
  background-color: var(--modal-bg);
  backdrop-filter: blur(8px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-content {
  background-color: var(--card-bg);
  padding: 40px;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  width: 100%; max-width: 400px;
  text-align: center;
  border: 1px solid var(--border-color);
}
.modal-content h2 { margin-bottom: 8px; font-size: 24px; color: var(--text-main); }
.modal-content p { color: var(--text-muted); margin-bottom: 24px; font-size: 14px; }

#login-form, #new-tab-form { display: flex; flex-direction: column; gap: 16px; }
#login-form input, #new-tab-form input {
  padding: 12px 16px; border: 1px solid var(--border-color);
  border-radius: 6px; background: var(--bg-color); color: var(--text-main);
  font-size: 15px; outline: none; transition: border-color 0.2s;
}
#login-form input:focus, #new-tab-form input:focus { border-color: var(--accent-color); }
#login-form button[type="submit"], #new-tab-form button[type="submit"] {
  padding: 12px; background-color: var(--accent-color); color: #fff;
  border: none; border-radius: 6px; font-size: 15px; font-weight: 500;
  cursor: pointer; transition: background-color 0.2s;
}
#login-form button:hover, #new-tab-form button[type="submit"]:hover { background-color: var(--accent-hover); }
.error-msg { color: #ef4444; margin-top: 12px; font-size: 14px; min-height: 20px; }

/* Blurring for Background tasks */
.blur-screen {
  filter: blur(6px) grayscale(20%);
  pointer-events: none;
  opacity: 0.7;
  transition: filter 0.3s ease, opacity 0.3s ease;
}

/* App Architecture */
.layout-column {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
}

/* TOP NAVBAR */
.top-navbar {
  height: 60px;
  background-color: var(--nav-bg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  color: #fff; /* Always white inside nav */
  border-bottom: 1px solid var(--border-color);
}

.nav-left, .nav-center, .nav-right {
  display: flex;
  align-items: center;
  flex: 1;
}

.nav-center {
  justify-content: center;
}

.nav-right {
  justify-content: flex-end;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  margin-right: 0px;
}

.pill-dropdown {
  background: #1f2937;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: background 0.2s;
}
.pill-dropdown:hover { background: #374151; }

.pill#new-tab-name {
  width: 100%;
  padding: 12px;
  background: var(--editor-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: #fff;
  margin-bottom: 24px;
  font-size: 16px;
}

.modal-actions-v {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal-actions-v button {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

.primary-btn {
  background: var(--highlight-color);
  color: #000;
}
.primary-btn:hover {
  background: #34d399;
  transform: translateY(-1px);
}

.secondary-btn {
  background: #262626;
  color: #fff;
  border: 1px solid var(--border-color) !important;
}
.secondary-btn:hover {
  background: #333;
}

.ghost-btn {
  background: transparent;
  color: #9ca3af;
}
.ghost-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.pill-nav {
  display: flex;
  background: #1e1e1e; /* Deep grey pilled container */
  border-radius: 8px;
  padding: 4px;
}

.nav-item {
  background: transparent;
  border: none;
  color: #9ca3af;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.nav-item:hover { color: #fff; }
.nav-item.active { background: #262626; color: #fff; box-shadow: 0 1px 2px rgba(0,0,0,0.1); }

.icon-btn {
  background: transparent; border: none; color: #9ca3af;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  border-radius: 50%; width: 32px; height: 32px; transition: background 0.2s, color 0.2s;
}
.icon-btn:hover { background: #374151; color: #fff; }

/* FLOATING TOOLTIP for IMAGES */
.floating-tooltip {
  position: absolute;
  background: #1e1e1e;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 4px;
  display: flex;
  gap: 4px;
  z-index: 9999;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.floating-tooltip button {
  background: transparent;
  border: none;
  color: #9ca3af;
  padding: 6px;
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.2s;
  display: flex; align-items: center; justify-content: center;
}

.floating-tooltip button:hover {
  background: #262626;
  color: var(--highlight-color);
}

.floating-tooltip .delete-img-btn:hover {
  background: #450a0a;
  color: #ef4444;
}

#editor-canvas img {
  max-width: 100%;
  margin: 10px 0;
  transition: all 0.3s ease;
  user-drag: element;
  -webkit-user-drag: element;
  cursor: grab;
}
#editor-canvas img:active {
  cursor: grabbing;
}

.avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: #f59e0b; color: #fff; font-weight: 600; font-size: 14px;
  display: flex; justify-content: center; align-items: center;
}

/* MAIN CONTENT */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 0 5px;
  overflow-y: auto;
}

.nav-workspace-title {
  font-weight: 600;
  font-size: 14px;
  color: #fff;
  margin-right: 8px;
}

.nav-divider {
  width: 1px; height: 16px; background: var(--border-color);
  margin: 0 16px;
}

.status-badges {
  display: flex;
  gap: 8px;
}

.badge {
  display: flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 100px; font-size: 12px; font-weight: 500;
  background: var(--card-bg); border: 1px solid var(--border-color);
  color: var(--text-muted);
}

.dark-badge {
  background: #121212; border: 1px solid var(--border-color); color: #888888;
  padding: 4px 12px;
  min-width: 100px;
  justify-content: flex-start;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  position: relative;
}

.pulse-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent-color);
  flex-shrink: 0;
  box-shadow: 0 0 8px var(--accent-color);
  transition: all 0.3s ease;
}

.mini-save-btn {
  background: #fff;
  color: #0b0f19;
  border: none;
  padding: 2px 10px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  margin-left: 10px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0;
  transform: translateX(20px);
  pointer-events: none;
  white-space: nowrap;
}

.mini-save-btn:not(.hidden) {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.mini-save-btn:hover {
  background: var(--accent-color);
  color: #fff;
  transform: scale(1.05);
}

.mini-save-btn:active {
  transform: scale(0.95);
}

.sync-pulse {
  animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  70% { box-shadow: 0 0 12px 6px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.warning-pulse {
  animation: warning-pulse-glow 1.5s infinite;
}

@keyframes warning-pulse-glow {
  0% { box-shadow: 0 0 0 0 rgba(234, 179, 8, 0.4); }
  70% { box-shadow: 0 0 12px 6px rgba(234, 179, 8, 0); }
  100% { box-shadow: 0 0 0 0 rgba(234, 179, 8, 0); }
}

.danger-pulse {
  animation: danger-pulse-glow 1s infinite;
}

@keyframes danger-pulse-glow {
  0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
  70% { box-shadow: 0 0 12px 6px rgba(239, 68, 68, 0); }
  100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

.ghost-btn {
  background: transparent; border: 1px solid var(--border-color);
  padding: 6px 14px; border-radius: 6px; font-size: 13px; font-weight: 500;
  color: var(--text-main); cursor: pointer; transition: all 0.2s;
}
.ghost-btn:hover { background: var(--border-color); }

/* TAB LAYOUT */
.tabs-container {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 5px;
  padding-top: 5px;
}

.tab-list {
  display: flex;
  gap: 24px;
}

.tab-item {
  padding: 12px 4px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.tab-item:hover { color: var(--text-main); }

.tab-item.active {
  color: var(--text-main);
  border-bottom: 2px solid var(--accent-color);
}

.tab-item span { pointer-events: none; }

.tab-item .close-tab {
  font-size: 18px;
  line-height: 1;
  padding: 0 4px;
  margin-left: 4px;
  border-radius: 4px;
  color: var(--text-muted);
  pointer-events: auto;
  transition: all 0.2s;
}
.tab-item .close-tab:hover {
  background: #ef444422; color: #ef4444; 
}

.add-tab-btn {
  background: transparent; border: none; color: var(--text-muted); padding: 8px;
  cursor: pointer; border-radius: 6px; margin-left: auto; transition: background 0.2s;
}
.add-tab-btn:hover { background: var(--border-color); color: var(--text-main); }

/* DATA CARD CONTAINER */
.card-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding-bottom: 5px;
}

.editor-card {
  flex: 1;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  padding: 10px; /* Reduced to provide more space but maintain a tiny inner gap */
  display: flex;
  flex-direction: column;
}

.canvas {
  width: 100%;
  flex: 1;
  outline: none;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-main);
}

.canvas[placeholder]:empty:before {
  content: attr(placeholder);
  color: var(--text-muted);
  pointer-events: none;
  display: block;
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }
/* Profile Modal Specifics */
.profile-content {
  max-width: 320px;
  padding: 32px;
}

.profile-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.profile-header h2 {
  margin-bottom: 0;
  font-size: 20px;
}

.profile-image-container {
  display: flex;
  justify-content: center;
  margin-bottom: 32px;
}

.profile-preview-large {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--accent-color);
  color: #fff;
  font-size: 48px;
  font-weight: 700;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
  object-fit: cover;
  overflow: hidden;
  border: 4px solid var(--card-bg);
  outline: 1px solid var(--border-color);
}

.profile-preview-large img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.primary-btn {
  padding: 12px;
  background-color: var(--accent-color);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.primary-btn:hover {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
}

.danger-ghost {
  color: #ef4444; border-color: #ef444422;
}

.danger-ghost:hover {
  background: #ef444411; color: #ef4444; border-color: #ef4444;
}

.avatar {
  cursor: pointer;
  transition: transform 0.2s;
  overflow: hidden;
  object-fit: cover;
}

.avatar:hover {
  transform: scale(1.05);
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}