/* CSS Variables for theming */
:root {
  --bg-primary: #ffffff;
  --bg-primary-rgb: 255, 255, 255;
  --bg-secondary: #f8f9fa00;
  --bg-tertiary: #f1f3f4;
  --text-primary: #1d1d1f;
  --text-secondary: #86868b;
  --border-color: #d2d2d7;
  --accent-color: #007aff;
  --accent-hover: #0056cc;
  --important-color: #ff9500;
  --success-color: #30d158;
  --danger-color: #ff3b30;
  --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.15);
  --border-radius: 12px;
  --border-radius-small: 8px;
  --transition: 0;
  --graveyard-bg: #f8f9fa;
  --graveyard-bg-rgb: 248, 249, 250;
  --graveyard-border: #e5e5e7;
  --checkbox-border-color: #1a1a1a;
  
  /* Light mode gradient colors */
  --gradient-1: rgba(0, 145, 255, 0);

  /* Scrollbar colors (light) */
  --scrollbar-thumb: rgba(0, 0, 0, 0.25);
  --scrollbar-thumb-hover: rgba(0, 0, 0, 0.4);
  --scrollbar-track: transparent;
}

[data-theme="dark"] {
  --bg-primary: #1c1c1e;
  --bg-primary-rgb: 28, 28, 30;
  --bg-secondary: #04ff0012;
  --bg-tertiary: #3a3a3c;
  --text-primary: #ffffff;
  --text-secondary: #98989d;
  --border-color: #38383a;
  --accent-color: #0080ff;
  --accent-hover: #007bff;
  --important-color: #00ff08;
  --success-color: #32d74b;
  --danger-color: #ff453a;
  --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.4);
  --graveyard-bg: #111111a6;
  --graveyard-bg-rgb: 10, 10, 10;
  --graveyard-border: #1a1a1a;
  --checkbox-border-color: #ffffff;
  
  /* Dark mode gradient colors */
  --gradient-1: rgb(0, 94, 255);

  /* Scrollbar colors (dark) */
  --scrollbar-thumb: rgba(255, 255, 255, 0.32);
  --scrollbar-thumb-hover: rgba(255, 255, 255, 0.5);
  --scrollbar-track: transparent;
}

* {
  margin: 0;
  padding: 0;
  user-select: none;
  box-sizing: border-box;
}

body {
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", system-ui, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: var(--transition);
  overflow-x: hidden;
  position: relative;
}

/* Minimal Scrollbars - WebKit (Chrome, Edge, Safari) */
*::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
*::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}
*::-webkit-scrollbar-thumb {
  background-color: var(--scrollbar-thumb);
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
*::-webkit-scrollbar-thumb:hover {
  background-color: var(--scrollbar-thumb-hover);
}

/* Slightly stronger thumb for primary scroll areas */
.checklist-container::-webkit-scrollbar-thumb,
.graveyard-list::-webkit-scrollbar-thumb {
  background-color: var(--scrollbar-thumb);
}
.checklist-container::-webkit-scrollbar-thumb:hover,
.graveyard-list::-webkit-scrollbar-thumb:hover {
  background-color: var(--scrollbar-thumb-hover);
}

/* Minimal Scrollbars - Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

/* Floating Background Shapes */
.floating-shapes {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.8;
  animation: float 20s infinite ease-in-out;
}

.shape-1 {
  width: 500px;
  height: 500px;
  background: var(--gradient-1);
  top: 0%;
  left: -5%;
  animation-delay: 0s;
  animation-duration: 25s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px) translateX(0px) rotate(0deg);
  }
  25% {
    transform: translateY(-20px) translateX(10px) rotate(90deg);
  }
  50% {
    transform: translateY(-10px) translateX(-15px) rotate(180deg);
  }
  75% {
    transform: translateY(15px) translateX(5px) rotate(270deg);
  }
}

.app {
  max-width: 100vw;
  margin: 0 auto;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  z-index: 2;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 32px;
  border-bottom: 1px solid var(--border-color);
  background-color: rgba(var(--bg-primary-rgb, 255, 255, 255), 0.9);
  backdrop-filter: blur(200px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.app-title {
  font-size: 28px;
  font-weight: 400;
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", system-ui, sans-serif;
}

/* Name editing UI */
.name-container {
  position: relative;
  display: inline-flex;
  align-items: baseline;
}

.user-name {
  cursor: text;
  transition: var(--transition);
  display: inline-block;
  vertical-align: baseline;
  -webkit-text-fill-color: currentColor;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  max-width: 400px;
  background: linear-gradient(135deg, #ffffff 0%, #ffbf84 35%, #ffe8b3 40%, #ffbf84 50%, #ffe8b3 60%, #ffffff 65%, #ffffff 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: titleGradient 4s ease-in-out infinite;
}

/* Light mode username - no gradient, just black */
[data-theme="light"] .user-name {
  background: transparent;
  -webkit-text-fill-color: #000000;
  background-clip: unset;
  animation: none;
}

.user-name:focus {
  outline: none;
  border-bottom: 2px solid var(--accent-color);
  padding-bottom: 2px;
}

.name-chat-bubble {
  position: absolute;
  top: 100%;
  left: 0;
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 500;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", system-ui, sans-serif;
  letter-spacing: -0.01em;
  line-height: 1.3;
  transition: all 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  margin-top: 8px;
  white-space: nowrap;
  z-index: 101;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(20px);
  border: 0.5px solid rgba(255, 255, 255, 0.1);
  -webkit-text-fill-color: currentColor !important; /* override app-title fill */
}

.name-chat-bubble .chat-arrow {
  position: absolute;
  top: -5px;
  left: 18px;
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-bottom: 5px solid var(--text-primary);
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
}

/* Light theme - black bubble with white text */
[data-theme="light"] .name-chat-bubble {
  background-color: #000000 !important;
  color: #ffffff !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15), 0 2px 8px rgba(0, 0, 0, 0.1);
  border: 0.5px solid rgba(255, 255, 255, 0.2);
}

[data-theme="light"] .name-chat-bubble .chat-arrow {
  border-bottom-color: #000000 !important;
}

/* Dark theme - white bubble with black text */
[data-theme="dark"] .name-chat-bubble {
  background-color: #ffffff !important;
  color: #000000 !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3), 0 2px 8px rgba(0, 0, 0, 0.2);
  border: 0.5px solid rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .name-chat-bubble .chat-arrow {
  border-bottom-color: #ffffff !important;
}

/* Hover effects for modern feel */
.name-chat-bubble:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.16), 0 3px 12px rgba(0, 0, 0, 0.12);
}

[data-theme="light"] .name-chat-bubble:hover {
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2), 0 3px 12px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] .name-chat-bubble:hover {
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.4), 0 3px 12px rgba(0, 0, 0, 0.25);
}

@keyframes titleGradient {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

/* Light mode app title - black color only */
[data-theme="light"] .app-title {
  background: transparent;
  -webkit-text-fill-color: #000000;
  background-clip: unset;
  animation: none;
}

/* Dark mode app title - white text for dynamic word */
[data-theme="dark"] .app-title .dynamic-word {
  color: #ffffff;
  -webkit-text-fill-color: #ffffff;
}

/* Dynamic typing cursor for app title */
.app-title .dynamic-word {
  position: relative;
  display: inline-block;
  min-height: 1em;
  min-width: 1px;
  vertical-align: baseline;
  line-height: inherit;
  font-size: inherit;
  font-weight: bold
}

.app-title .dynamic-word::after {
  content: "|";
  position: absolute;
  right: -10px;
  top: 0;
  animation: blink 1s steps(2, start) infinite;
  color: currentColor;
  -webkit-text-fill-color: currentColor; /* ensure visible over gradient text */
  font-weight: bold;
  font-size: 1.1em;
  line-height: inherit;
}

/* Cursor color by theme */
[data-theme="dark"] .app-title .dynamic-word::after {
  color: #ffffff;
}

[data-theme="light"] .app-title .dynamic-word::after {
  color: #000000;
}

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.dark-mode-toggle {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  transition: var(--transition);
}

.dark-mode-toggle:hover {
  transform: scale(1.05);
}

.dark-mode-toggle .icon-svg {
  width: 20px;
  height: 20px;
  fill: var(--text-primary);
  transition: var(--transition);
}

.app-layout {
  display: flex;
  flex: 1;
  min-height: calc(100vh - 80px);
  overflow: hidden;
}

/* Checklist Container */
.checklist-container {
  flex: 1;
  padding: 32px;
  background: rgba(var(--bg-primary-rgb, 255, 255, 255), 0.85);
  backdrop-filter: blur(20px);
  border-right: 1px solid var(--graveyard-border);

  /* NEW: constrain size + scroll inside */
  max-height: calc(100vh - 80px); /* full height minus header */
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  min-width: 0;
}

/* Graveyard Container */
.graveyard-container {
  width: 320px;
  background: var(--graveyard-bg);
  backdrop-filter: blur(50px);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  overflow: hidden;
  flex-shrink: 0;
}

.graveyard-header {
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--graveyard-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.graveyard-toggle {
  display: none;
  background: transparent;
  border: none;
  padding: 4px;
  margin-left: 8px;
  cursor: pointer;
  color: var(--text-secondary);
}

.graveyard-toggle .icon-svg { width: 20px; height: 20px; }

.graveyard-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.graveyard-count {
  background: var(--accent-color);
  color: white;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 12px;
  min-width: 20px;
  text-align: center;
}

.graveyard-badges {
  display: flex;
  align-items: center;
  gap: 8px;
}

.countdown-badge {
  color: #ff453a;
  background: rgba(255, 0, 0, 0.097);
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 400;
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", system-ui, sans-serif;
}

.graveyard-list {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  max-height: calc(100vh - 80px);
}

.empty-graveyard {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-secondary);
}

.empty-graveyard .empty-icon {
  font-size: 32px;
  display: block;
  margin-bottom: 0px;
  opacity: 0.6;
}

.empty-graveyard p {
  font-size: 14px;
  font-weight: 500;
}

.graveyard-item {
  background: rgba(0, 0, 0, 0);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--border-radius-small);
  padding: 16px;
  margin-bottom: 12px;
  transition: var(--transition);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

[data-theme="dark"] .graveyard-item {
  background: rgba(255, 255, 255, 0);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.graveyard-item:hover {
  box-shadow: var(--shadow-light);
  transform: translateY(-1px);
  border-color: var(--accent-color);
  background: rgba(2, 166, 255, 0.09);
}

.graveyard-task-content {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.graveyard-task-icon {
  font-size: 16px;
  font-weight: 400;
  font-family: "Bebas Neue", sans-serif;
  color: var(--text-primary);
  flex-shrink: 0;
  letter-spacing: 0.5px;
  opacity: 0.8;
}

.graveyard-task-info {
  flex: 1;
  min-width: 0;
}

.graveyard-task-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.graveyard-task-time {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 400;
}

.graveyard-task-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}


.add-task-container {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  padding: 16px;
  border: none;
}

.add-task-input {
  flex: 1;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--text-secondary);
  outline: none;
  font-size: 1.4rem;
  font-weight: 200;
  color: var(--text-primary);
  padding: 8px 0 8px 5px;
  transition: var(--transition);
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", system-ui, sans-serif;
  border-radius: 0;

}

.add-task-input:focus {
  border-bottom-color: var(--text-primary);
}

.add-task-input::placeholder {
  color: var(--text-secondary);
}

.add-task-btn {
  background: transparent;
  color: var(--accent-color);
  border: 1px solid var(--accent-color);
  border-radius: var(--border-radius-small);
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

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

.task-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow: visible;   /* let parent handle scrolling */
  max-height: none;
}

.empty-state {
  text-align: center;
  padding: 64px 32px;
  color: var(--text-secondary);
}

.empty-icon {
  font-size: 48px;
  display: block;
  margin-bottom: 0px;
}

.task-item {
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: grab;
}

.task-item.dragging {
  cursor: grabbing;
}

.task-item:hover {
  box-shadow: var(--shadow-medium);
}

.task-item.dragging {
  opacity: 0.5;
  transform: rotate(5deg);
}

.task-item.important {
  border-left: 4px solid var(--important-color);
  background: linear-gradient(90deg, rgba(0, 255, 140, 0.293) 0%, transparent 45%);
}

.task-header {
  display: flex;
  align-items: center;
  padding: 16px;
  gap: 6px;
}

.task-checkbox {
  width: 28px;
  height: 28px;
  border: none; /* remove circle */
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-right: 0px;
  padding: 0;
  background: transparent;
}

.task-checkbox:hover .check-badge-icon { 
  color: var(--success-color);
}

.task-checkbox.completed { opacity: 1; }

/* Important task styling - success colors for icon and checkbox */
.task-item.important .task-icon {
  color: var(--success-color);
}


/* Hide legacy pseudo checkmark as we use SVG now */
.task-checkbox.completed::after { content: none; }

/* Replace checkmark with SVG image; only show when completed */
.check-badge-icon {
  width: 30px;
  height: 30px;
  display: block;
  background: currentColor;
  -webkit-mask: url('svg/check-badge.svg') no-repeat center / contain;
  mask: url('svg/check-badge.svg') no-repeat center / contain;
  color: var(--text-primary);
}

/* important uses success color */
.task-item.important .check-badge-icon { color: var(--success-color); }

.task-icon {
  font-size: 20px;
  font-family: "Bebas Neue", sans-serif;
  color: var(--text-primary);
  flex-shrink: 0;
  letter-spacing: 0.5px;
  opacity: 0.9;
  margin-right: 8px;
}

.task-title {
  flex: 1;
  max-width: 300px !important;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  background: transparent;
  border: none;
  border-radius: 0;
  border-bottom: 1px solid transparent;
  outline: none;
  padding: 4px 0;
  transition: var(--transition);
  /* single-line by default */
  white-space: nowrap;
  overflow: hidden;
  line-height: 1.5;
  height: 1.5em; /* one line */
  resize: none; /* prevent manual resize */
}

.task-title:focus {
  border-bottom-color: var(--text-primary);
}

/* Static display for ellipsis when not editing */
.task-title-display {
  flex: 1;
  max-width: 300px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  background: transparent;
  border: none;
  outline: none;
  padding: 4px 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis; /* ensure ellipsis visible */
  cursor: text;
}

/* Hide the textarea when not editing (until focus/expanded) */
.task-title:not(.expanded) {
  display: none;
}

/* Show ellipsis only when not expanded (unfocused/collapsed look) */
.task-title-display {
  text-overflow: ellipsis;
}

/* Multiline expanded state while editing */
.task-title.expanded {
  white-space: pre-wrap;       /* wrap long lines */
  overflow: hidden;            /* no scrollbar; height grows via JS */
  min-height: 1.5em;
  height: auto;                /* let JS set exact height */
  max-width: 300px !important; /* keep limited width even when expanded */
  width: auto;                 /* let content determine width */
}

.task-title.completed {
  text-decoration: line-through;
  color: var(--text-secondary);
}

  .task-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-left: auto;
  }
  
  .task-separator {
    color: var(--text-secondary);
    opacity: 0.6;
    font-weight: 400;
    margin: 0 4px;
  }

.task-details {
  border-top: 1px solid var(--border-color);
  padding: 16px;
  background: var(--bg-primary);
  display: none;
}

.task-details.expanded {
  display: block;
}

.task-notes {
  margin-bottom: 16px;
}

.task-notes label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.task-notes textarea {
  width: 100%;
  background: transparent;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-small);
  padding: 12px;
  font-size: 1rem;
  font-weight: 200;
  color: var(--text-primary);
  resize: vertical;
  min-height: 80px;
  font-family: inherit;
  transition: var(--transition);
}

.task-notes textarea::placeholder {
  color: var(--text-secondary);
}

.subtasks {
padding: 0 16px 16px 16px;
  margin-top: 0px;
}

.subtasks label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.subtask-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.subtask-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 18px;
  margin-bottom: 10px;
  background: transparent;
  border-bottom: 1px solid var(--border-color);
}

.subtask-checkbox {
  width: 16px;
  height: 16px;
  border: 2px solid var(--border-color);
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.subtask-checkbox.completed {
  background: var(--success-color);
  border-color: var(--success-color);
  color: white;
}

.subtask-checkbox.completed::after {
  content: "✓";
  font-size: 10px;
  font-weight: bold;
}

.subtask-title {
  flex: 1;
  background: transparent;
  border: none;
  border-bottom: 1px solid transparent;
  outline: none;
  font-size: 1rem;
  color: var(--text-primary);
  transition: var(--transition);
  display: block;
  width: 100%;
  resize: none;
  overflow: hidden;
  white-space: pre-wrap;
  word-break: break-word;
}

.subtask-item:focus-within {
  border-bottom-color: var(--text-primary);
  border-width: 1px;
}

.subtask-title.completed {
  text-decoration: line-through;
  color: var(--text-secondary);
}

.subtask-delete {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.subtask-delete:hover {
  background: var(--danger-color);
  color: white;
}

.add-subtask-container {
  margin-top: 8px;
  display: flex;
  gap: 8px;
}

.add-subtask-input {
  flex: 1;
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--border-color);
  border-radius: 0;
  padding: 8px 0;
  font-size: 1rem;
  font-weight:200;
  color: var(--text-primary);
  transition: var(--transition);
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", system-ui, sans-serif;
}



.add-subtask-btn {
  background: transparent;
  color: var(--accent-color);
  border: 1px solid var(--accent-color);
  border-radius: var(--border-radius-small);
  padding: 8px 12px;
  font-size: 12px;
  cursor: pointer;
  transition: var(--transition);
}

.add-subtask-btn:hover {
  background: var(--accent-color);
  color: white;
}

/* Responsive design */

/* Desktop padding */
@media (min-width: 1200px) {
  .checklist-container {
    padding: 100px;
  }
}

/* Tablet padding */
@media (min-width: 769px) and (max-width: 1199px) {
  .checklist-container {
    padding: 40px;
  }
  
  .app {
    max-width: 100%;
  }
  
  .graveyard-container {
    width: 280px;
  }
  
  .graveyard-header {
    padding: 20px 16px 16px;
  }
  
  .graveyard-list {
    padding: 12px;
  }
}

@media (max-width: 768px) {

  .add-task-input {
    margin-bottom: 10px;
  }

  .app-layout {
    flex-direction: column;
  }
  
  body.hide-top-bar .top-bar { display: none; }
  body.hide-top-bar .checklist-container { padding-bottom: 300px; }

  .checklist-container {
    border-right: none;
    border-bottom: 1px solid var(--graveyard-border);
    max-height: none;      /* allow full height */
    overflow-y: auto;      /* keep container scrollable on mobile too */
    padding-bottom: 100px;
  }
  
  .graveyard-container {
    width: 100%;
    max-height: 300px;
    background: rgba(255, 255, 255, 0);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-top-right-radius: 16px;
    border-top-left-radius: 16px;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100;
    display: flex;
    flex-direction: column-reverse;
  }
  [data-theme="light"] .graveyard-container:not(.collapsed) {
    background: transparent;
    border-top: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
  }
  
  .graveyard-header {
    padding: 16px 20px;
  }
  
  .graveyard-list {
    padding: 16px 20px;
    max-height: 240px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    transform-origin: top;
    transform: translateY(0);
    transition: max-height 300ms ease, transform 300ms ease, opacity 300ms ease;
    opacity: 1;
  }
  
  .graveyard-container {
    transition: transform 300ms ease, opacity 300ms ease;
  }

  /* Collapsed: keep container at bottom with header visible; slide content up */
  .graveyard-container.collapsed .graveyard-list {
    max-height: 0;
    transform: translateY(-8px);
    opacity: 0.0;
    padding-top: 0;
    padding-bottom: 0;
    padding-left: 0;
    padding-right: 0;
  }
  .graveyard-container.collapsed {
    transform: translateY(0);
    max-height: 120px; /* taller collapsed chrome */
  }
  .graveyard-container.collapsed .graveyard-header {
    padding: 16px 20px; /* more padding when collapsed */
  }
  .graveyard-toggle {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .graveyard-toggle .icon-svg {
    width: 35px;
    height: 35px;
  }
  
  .top-bar {
    padding: 25px;
  }

  .app-title {
    font-size: 1.2rem;
  }

  .main-content {
    padding: 20px;
  }

  .add-task-container {
    flex-direction: column;
    gap: 8px;
  }

  .task-header {
    padding: 12px;
  }

  .task-actions {
    flex-wrap: wrap;
  }

  .graveyard-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .graveyard-badges { display: flex; align-items: center; gap: 8px; }
  /* Narrower subtask input on mobile */
  .add-subtask-input { max-width: 70%; }
  .graveyard-header { cursor: pointer; }
  
  /* Disable checkbox hover effects on mobile */
  .task-checkbox:hover .check-badge-icon {
    color: var(--text-primary);
  }
  
  /* Mobile username overflow with ellipsis */
  .user-name {
    max-width: 120px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}

/* SVG Icons */
.icon-svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  transition: var(--transition);
}

/* Make expand arrow bigger */
.task-btn.expand-btn .icon-svg {
  width: 35px;
  height: 35px;
}

/* Task Action Buttons */
.task-btn {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.task-btn:hover {
  background: none;
  color: var(--text-primary);
  transform: none;
}

.task-btn.important-btn.active {
  color: var(--important-color);
}

.task-btn.expand-btn.active {
  color: var(--accent-color);
}

.task-btn.delete-btn:hover {
  color: var(--danger-color);
}

/* Graveyard Buttons */
.graveyard-btn {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.graveyard-btn:hover {
  background: none;
  color: var(--text-primary);
  transform: none;
}

.graveyard-btn.restore-btn:hover {
  color: var(--success-color);
}

.graveyard-btn.delete-btn:hover {
  color: var(--danger-color);
}

/* Subtask Delete Button */
.subtask-delete {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.subtask-delete:hover {
  background: none;
  color: var(--danger-color);
}

.subtask-delete .icon-svg {
  width: 18px;
  height: 18px;
}

/* Drop target line shown just below hovered task while dragging */
.task-item.drop-below {
  position: relative;
}

.task-item.drop-below::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: -1px;
  height: 3px;
  background: var(--accent-color);
  border-radius: 2px;
}

/* Favorites separator */
.favorites-separator {
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--border-color) 20%, var(--border-color) 80%, transparent 100%);
  margin: 16px 0;
  opacity: 0.6;
}

/* Drop target line shown just above hovered task while dragging */
.task-item.drop-above {
  position: relative;
}

.task-item.drop-above::before {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  top: -1px;
  height: 3px;
  background: var(--accent-color);
  border-radius: 2px;
}

/* Graveyard Tasks - Expiring Soon */
.graveyard-item.expiring-soon {
  background: rgba(255, 59, 48, 0.08);
  border-color: rgba(255, 59, 48, 0.2);
}

.graveyard-item.expiring-soon .expiring-warning {
  font-size: 11px;
  color: #ff453a;
  font-weight: 500;
  margin-top: 2px;
  opacity: 0.8;
}

[data-theme="dark"] .graveyard-item.expiring-soon {
  background: rgba(255, 69, 58, 0.12);
  border-color: rgba(255, 69, 58, 0.3);
}

[data-theme="dark"] .graveyard-item.expiring-soon .expiring-warning {
  color: #ff453a;
}

/* Nuclear option: Remove ALL possible focus styles from notes and subtask inputs */
.task-notes textarea:focus,
.task-notes textarea:focus-visible,
.task-notes textarea:focus-within,
.add-subtask-input:focus,
.add-subtask-input:focus-visible,
.add-subtask-input:focus-within {
  outline: none !important;
  box-shadow: none !important;
  border-color: var(--text-primary) !important;
  background-color: transparent !important;
  border-width: 1px;
}

/* Override any potential CSS inheritance */
.task-notes textarea:focus,
.add-subtask-input:focus {
  border-color: var(--text-primary) !important;
  outline: none !important;
  box-shadow: none !important;
  border-width: 1px;
}

/* Delete Confirmation Popup */
.delete-popup-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.delete-popup-overlay.show {
  display: flex;
}

.delete-popup {
  background: rgba(239, 68, 68, 0.05);
  backdrop-filter: blur(20px);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 40px rgba(239, 68, 68, 0.3);
  max-width: 400px;
  width: 100%;
  overflow: hidden;
  border: 1px solid #ef4444;
}

/* Light mode warning popup colors */
[data-theme="light"] .delete-popup {
  background: rgba(23, 2, 2, 0.759);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15), 0 0 40px rgba(239, 68, 68, 0.2);
  border: 1px solid rgba(255, 0, 0, 0.972);
}

[data-theme="light"] .delete-popup-title{
  color:white;
}

[data-theme="light"] .delete-popup-header{
  border-bottom: 1px solid rgba(255, 0, 0, 0.549);
}

[data-theme="light"] .delete-popup-header .icon-svg{
  color: white;
}


.delete-popup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 24px 20px 24px;
  border-bottom: 1px solid rgba(239, 68, 68, 0.2);
}

.delete-popup-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.delete-popup-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  font-family: 'Pretendard', sans-serif;
}

.delete-popup-header .delete-warning-icon {
  margin: 0;
}

.delete-popup-header .delete-warning-icon .icon-svg {
  width: 28px;
  height: 28px;
  color: #ef4444;
  filter: drop-shadow(0 0 8px rgba(239, 68, 68, 0.4));
}

.delete-popup-close {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  color: var(--text-primary);
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.delete-popup-close:hover {
  background: var(--bg-secondary);
}

.delete-popup-close .icon-svg {
  width: 20px;
  height: 20px;
}

.delete-popup-body {
  padding: 24px;
  text-align: center;
  padding-top: 20px;
}



.delete-task-preview {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.preview-icon {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--success-color);
  font-family: 'Bebas Neue', sans-serif;
  opacity: 0.9;
}

.preview-title {
  font-size: 1rem;
  font-weight: 400;
  color: var(--success-color);
  font-family: 'Pretendard', sans-serif;
}

.delete-message {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.5;
  margin: 0 0 25px 0;
  font-family: 'Pretendard', sans-serif;
}

.delete-popup-actions {
  display: flex;
  justify-content: center;
  margin-top: 24px;
}

.delete-popup-btn {
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: 'Pretendard', sans-serif;
  min-width: 100px;
}



.delete-popup-btn.confirm-btn {
  background: #ef4444;
  color: white;
  border: 1px solid #ef4444;
}

.delete-popup-btn.confirm-btn:hover {
  background: #dc2626;
  border-color: #dc2626;
  filter: drop-shadow(0 0 8px rgba(239, 68, 68, 0.3));
}

.task-item.error {
  border-color: var(--danger-color);
}

.task-error-message {
  color: var(--danger-color);
  font-size: 0.9rem;
  padding: 8px 16px 0 16px;
  margin: 0 0 8px 0;
}

@keyframes shake {
  10%, 90% { transform: translateX(-1px); }
  20%, 80% { transform: translateX(2px); }
  30%, 50%, 70% { transform: translateX(-4px); }
  40%, 60% { transform: translateX(4px); }
}

.task-item.shake {
  animation: shake 0.6s ease both;
}

/* Color popover (chat-bubble) */
.color-popover {
  position: absolute;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 12px;
  padding: 10px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
  z-index: 9999;
}
.color-popover-inner {
  display: grid;
  grid-template-columns: repeat(3, 18px);
  grid-auto-rows: 18px;
  gap: 8px;
}
.color-option {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  padding: 0;
}
.color-option:hover { filter: brightness(1.1); }
.color-popover-arrow {
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 10px;
  height: 10px;
  background: rgba(0,0,0,0.6);
  border-left: 1px solid rgba(255,255,255,0.15);
  border-bottom: 1px solid rgba(255,255,255,0.15);
}