:root {
  color-scheme: dark;
  --bg-base: #090a0f;
  --bg-surface: rgba(20, 22, 30, 0.4);
  --bg-surface-hover: rgba(30, 34, 45, 0.6);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glass-hover: rgba(255, 255, 255, 0.15);
  
  --ink: #f0f2f8;
  --muted: #8b949e;
  
  --teal: #00e676;
  --teal-glow: rgba(0, 230, 118, 0.3);
  
  --amber: #f5a623;
  --amber-glow: rgba(245, 166, 35, 0.3);
  
  --coral: #ff4b4b;
  --coral-glow: rgba(255, 75, 75, 0.3);
  
  --violet: #9d4edd;
  --violet-glow: rgba(157, 78, 221, 0.3);

  --accent: #3b82f6;
  --accent-glow: rgba(59, 130, 246, 0.4);

  --shadow-ambient: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px var(--accent-glow);
  
  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 24px;

  --font-display: 'Outfit', sans-serif;
  --font-body: 'Inter', Pretendard, sans-serif;
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
}

html, body {
  min-height: 100%;
  margin: 0;
  padding: 0;
  background-color: var(--bg-base);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.5;
  overflow-x: hidden;
}

/* Animated Background */
.bg-layer {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: -1;
  pointer-events: none;
}

.noise {
  background: url('data:image/svg+xml;utf8,%3Csvg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="noiseFilter"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(%23noiseFilter)"/%3E%3C/svg%3E');
  opacity: 0.04;
  mix-blend-mode: overlay;
}

.blob {
  position: absolute;
  filter: blur(90px);
  border-radius: 50%;
  animation: float 20s infinite alternate cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0.5;
}

.blob-1 {
  top: -10%; left: -10%;
  width: 50vw; height: 50vw;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  animation-delay: 0s;
}

.blob-2 {
  bottom: -20%; right: -10%;
  width: 60vw; height: 60vw;
  background: radial-gradient(circle, var(--violet) 0%, transparent 70%);
  animation-delay: -5s;
}

.blob-3 {
  top: 40%; left: 60%;
  width: 40vw; height: 40vw;
  background: radial-gradient(circle, var(--teal) 0%, transparent 70%);
  animation-delay: -10s;
  opacity: 0.3;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(5%, 10%) scale(1.1); }
  66% { transform: translate(-5%, 5%) scale(0.9); }
  100% { transform: translate(0, 0) scale(1); }
}

/* Typography */
h1, h2, h3, h4, .eyebrow {
  font-family: var(--font-display);
  margin-top: 0;
}

h1 {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0;
  background: linear-gradient(135deg, #fff 0%, #a5b4fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0;
}

.eyebrow {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 4px;
}

p { margin-top: 0; }

/* Form Controls */
button, input, select, textarea {
  font: inherit;
  color: inherit;
}
button { cursor: pointer; }

input, select, textarea {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 0 16px;
  color: var(--ink);
  transition: var(--transition);
  backdrop-filter: blur(10px);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background: rgba(20, 22, 30, 0.7);
}
input, select { height: 44px; }
textarea { padding: 12px 16px; resize: vertical; min-height: 100px; }

/* App Layout */
.app-shell {
  width: min(1800px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 64px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
  padding: 16px 24px;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-ambient);
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-mark {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  box-shadow: var(--shadow-glow);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
  justify-content: flex-end;
}

.search-field {
  position: relative;
  width: min(400px, 100%);
}

.search-field svg {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--muted);
  pointer-events: none;
}

.search-field input {
  padding-left: 44px;
  border-radius: 999px;
  background: rgba(0,0,0,0.2);
}
.search-field input:focus {
  background: var(--bg-surface);
}

/* Buttons */
.button, .tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  transition: var(--transition);
  white-space: nowrap;
}
.button svg, .tab svg { width: 18px; height: 18px; }

.button.primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 15px var(--accent-glow);
}
.button.primary:hover {
  background: #2563eb;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--accent-glow);
}

.button.subtle {
  background: var(--bg-surface);
  border-color: var(--border-glass);
  color: var(--ink);
}
.button.subtle:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-glass-hover);
  transform: translateY(-2px);
}

.button.danger-ghost {
  background: rgba(255, 75, 75, 0.1);
  color: var(--coral);
  border-color: rgba(255, 75, 75, 0.2);
}
.button.danger-ghost:hover {
  background: var(--coral);
  color: #fff;
  box-shadow: 0 4px 15px var(--coral-glow);
}

.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  color: var(--muted);
  transition: var(--transition);
}
.icon-button:hover {
  background: var(--bg-surface-hover);
  color: var(--ink);
  border-color: var(--border-glass-hover);
  transform: scale(1.05);
}
.icon-button.danger-icon:hover {
  background: rgba(255, 75, 75, 0.1);
  color: var(--coral);
  border-color: var(--coral);
}

/* Metrics Grid */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.metric {
  padding: 24px;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  box-shadow: var(--shadow-ambient);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.metric:hover {
  transform: translateY(-4px);
  border-color: var(--border-glass-hover);
}
.metric::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 3px;
  background: var(--accent);
  opacity: 0.5;
}
.metric.alert::before { background: var(--coral); opacity: 1; }
.metric.alert { box-shadow: 0 8px 32px var(--coral-glow); }

.metric-label {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.metric strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.1;
  margin-top: 12px;
}
.metric small {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Workspace Layout */
.workspace {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  align-items: start;
}

.control-panel, .main-panel {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-ambient);
}

.control-panel {
  position: sticky;
  top: 24px;
  overflow: hidden;
}

.panel-section {
  padding: 24px;
  border-bottom: 1px solid var(--border-glass);
}
.panel-section:last-child { border-bottom: none; }

.section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.section-title svg { color: var(--accent); }

.field-stack { display: grid; gap: 16px; }

label span, .fixed-field span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
}

.today-queue { display: grid; gap: 12px; }

.queue-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 16px;
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  text-align: left;
}
.queue-item:hover {
  background: var(--bg-surface);
  border-color: var(--border-glass-hover);
  transform: translateX(4px);
}
.queue-item strong { font-size: 0.95rem; font-weight: 600; color: var(--ink); }
.queue-item span { font-size: 0.8rem; color: var(--accent); }

.empty-state {
  padding: 32px 20px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--border-glass);
  border-radius: var(--radius);
  background: rgba(0,0,0,0.1);
}

.utility-actions { display: grid; gap: 12px; }

/* Main Panel */
.main-panel {
  padding: 24px;
  min-width: 0;
}

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

.tabs {
  display: flex;
  gap: 4px;
  padding: 6px;
  background: rgba(0,0,0,0.3);
  border-radius: 999px;
  border: 1px solid var(--border-glass);
}
.tab {
  height: 38px;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 600;
}
.tab:hover:not(.active) { color: var(--ink); background: rgba(255,255,255,0.05); }
.tab.active {
  background: var(--bg-surface);
  color: var(--ink);
  box-shadow: 0 2px 10px rgba(0,0,0,0.2);
  border-color: var(--border-glass);
}

.view { display: none; animation: fadeIn 0.4s ease; }
.active-view { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Kanban Board */
.kanban {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.kanban-column {
  display: flex;
  flex-direction: column;
  background: rgba(0,0,0,0.15);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  min-height: 400px;
}

.column-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border-bottom: 1px solid var(--border-glass);
  background: rgba(255,255,255,0.02);
}
.column-header h3 { margin: 0; font-size: 1.05rem; }

.count-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  height: 26px;
  border-radius: 999px;
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
}

.column-body {
  padding: 16px;
  display: grid;
  align-content: start;
  gap: 16px;
  flex: 1;
  overflow-y: auto;
}
.column-body.drag-over {
  background: rgba(255,255,255,0.02);
  outline: 2px dashed var(--accent);
  outline-offset: -2px;
  border-radius: var(--radius);
}

/* Task Cards */
.task-card {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  display: grid;
  gap: 8px;
  cursor: grab;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}
.task-card:hover {
  transform: translateY(-4px) scale(1.02);
  border-color: var(--border-glass-hover);
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  z-index: 10;
}
.task-card.dragging {
  opacity: 0.4;
  transform: scale(0.95);
}

/* Status Indicators using glows */
.task-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 4px; height: 100%;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  transition: var(--transition);
}
.task-card.status-todo::before { background: var(--coral); box-shadow: 0 0 15px var(--coral); }
.task-card.status-progress::before { background: var(--amber); box-shadow: 0 0 15px var(--amber); }
.task-card.status-done::before { background: var(--teal); box-shadow: 0 0 15px var(--teal); }
.task-card.status-discarded::before { background: var(--violet); box-shadow: 0 0 15px var(--violet); opacity: 0.6; }
.task-card.status-done { opacity: 0.7; }
.task-card.status-discarded { opacity: 0.5; filter: grayscale(50%); }

.task-topline { display: flex; align-items: center; gap: 10px; }
.rank-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px; height: 24px;
  border-radius: 6px;
  background: rgba(0,0,0,0.3);
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 800;
}
.drag-handle { color: var(--muted); cursor: grab; }
.drag-handle:active { cursor: grabbing; }

.task-card-buttons { display: flex; gap: 6px; margin-left: auto; }
.task-card-buttons .icon-button { width: 28px; height: 28px; }
.task-card-buttons .icon-button svg { width: 14px; height: 14px; }

.task-title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.35;
}

.task-meta { font-size: 0.85rem; color: var(--muted); }

.task-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
}

.tag {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.tag.status-tag.todo { background: rgba(255, 75, 75, 0.15); color: #ff7676; border: 1px solid rgba(255,75,75,0.3); }
.tag.status-tag.progress { background: rgba(245, 166, 35, 0.15); color: #ffd166; border: 1px solid rgba(245,166,35,0.3); }
.tag.status-tag.done { background: rgba(0, 230, 118, 0.15); color: #69f0ae; border: 1px solid rgba(0,230,118,0.3); }
.tag.status-tag.discarded { background: rgba(157, 78, 221, 0.15); color: #c77dff; border: 1px solid rgba(157,78,221,0.3); }

.mini-select {
  width: auto;
  min-width: 100px;
  height: 30px;
  padding: 0 10px;
  font-size: 0.8rem;
  border-radius: 6px;
  background: rgba(0,0,0,0.2);
}

/* List View Table */
.table-wrap {
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  background: rgba(0,0,0,0.15);
  overflow-x: auto;
}
table { width: 100%; border-collapse: collapse; min-width: 800px; }
th, td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-glass);
  text-align: left;
}
th {
  background: rgba(255,255,255,0.02);
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
td { font-size: 0.95rem; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }

.table-title strong { display: block; font-size: 1rem; margin-bottom: 4px; }
.table-title span { color: var(--muted); font-size: 0.85rem; }

/* Dialog */
.task-dialog {
  width: min(700px, calc(100% - 32px));
  padding: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border-glass-hover);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255,255,255,0.1) inset;
  color: var(--ink);
  backdrop-filter: blur(24px) saturate(150%);
}
.task-dialog::backdrop {
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
}
.task-dialog form { padding: 32px; }

.dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 32px;
}
.dialog-header h2 { font-size: 1.8rem; background: linear-gradient(to right, #fff, #a5b4fc); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-grid .wide { grid-column: 1 / -1; }

.dialog-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border-glass);
}
.dialog-action-group { display: flex; gap: 12px; }

/* Toast */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--accent);
  color: #fff;
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 600;
  box-shadow: 0 10px 25px var(--accent-glow);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 1000;
}
.toast.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* Responsive adjustments */
@media (max-width: 1200px) {
  .workspace { grid-template-columns: 280px 1fr; }
  .kanban { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .workspace { grid-template-columns: 1fr; }
  .summary-grid { grid-template-columns: repeat(2, 1fr); }
  .kanban { grid-template-columns: 1fr; }
  .control-panel { position: static; }
}