:root {
  --bg-color: #0b0f19;
  --card-bg: rgba(255, 255, 255, 0.03);
  --card-border: rgba(255, 255, 255, 0.08);
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --accent-color: #6366f1;
  --accent-glow: rgba(99, 102, 241, 0.3);
  --accent-2: #ec4899;
  --accent-2-glow: rgba(236, 72, 153, 0.3);
  --danger-color: #ef4444;
  --font-title: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-body);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: hidden;
  position: relative;
}

.background-decor {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
  overflow: hidden;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.25;
  animation: float 15s infinite alternate;
}

.blob-1 {
  width: 400px;
  height: 400px;
  background: var(--accent-color);
  top: -100px;
  left: -100px;
}

.blob-2 {
  width: 500px;
  height: 500px;
  background: var(--accent-2);
  bottom: -150px;
  right: -100px;
  animation-delay: 5s;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(50px, 30px) scale(1.1); }
}

.container {
  width: 100%;
  max-width: 480px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

header {
  text-align: center;
}

header h1 {
  font-family: var(--font-title);
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 50%, var(--accent-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.glass-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(20px);
  border-radius: 24px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.metric-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 16px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.metric-value {
  font-family: var(--font-title);
  font-size: 1.75rem;
  font-weight: 600;
  color: #fff;
}

.input-section {
  display: flex;
  gap: 12px;
}

#task-input {
  flex: 1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 14px 16px;
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: all 0.3s ease;
}

#task-input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background: rgba(255, 255, 255, 0.08);
}

.glowing-btn {
  background: linear-gradient(135deg, var(--accent-color), var(--accent-2));
  border: none;
  border-radius: 14px;
  padding: 1px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, box-shadow 0.3s ease;
}

.glowing-btn span {
  background: var(--bg-color);
  color: #fff;
  padding: 13px 20px;
  border-radius: 13px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: background 0.3s ease;
}

.glowing-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--accent-glow);
}

.glowing-btn:hover span {
  background: transparent;
}

.tasks-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.tasks-header h3 {
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 600;
}

.text-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: color 0.2s ease;
}

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

.tasks-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 200px;
  overflow-y: auto;
  padding-right: 4px;
}

.tasks-list::-webkit-scrollbar {
  width: 4px;
}

.tasks-list::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

.empty-state {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 24px 0;
  border: 1px dashed rgba(255, 255, 255, 0.05);
  border-radius: 12px;
}

.task-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 12px;
  padding: 12px 16px;
  transition: all 0.2s ease;
  animation: fadeIn 0.3s ease forwards;
}

.task-item:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.08);
}

.task-text {
  font-size: 0.95rem;
  color: #f1f5f9;
}

.delete-task-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.1rem;
  cursor: pointer;
  transition: color 0.2s;
  padding: 2px 6px;
}

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

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

footer {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-secondary);
}