:root {
  --background: 218 36% 97%;
  --foreground: 224 34% 15%;
  --primary: 260 84% 56%;
  --primary-foreground: 0 0% 100%;
  --secondary: 184 72% 42%;
  --secondary-foreground: 0 0% 100%;
  --muted: 220 20% 90%;
  --muted-foreground: 223 15% 43%;
  --destructive: 348 78% 54%;
  --destructive-foreground: 0 0% 100%;
  --border: 222 24% 84%;
  --card: 0 0% 100%;
  --shadow-sm: 0 1px 2px rgba(33, 31, 51, 0.08);
  --shadow-md: 0 12px 30px rgba(61, 48, 111, 0.12);
  --shadow-lg: 0 24px 70px rgba(46, 37, 92, 0.18);
  --transition-fast: 150ms ease;
  --transition-smooth: 260ms cubic-bezier(.2,.8,.2,1);
  --radius-sm: 0.55rem;
  --radius-md: 0.9rem;
  --radius-lg: 1.35rem;
}

.dark {
  --background: 230 30% 9%;
  --foreground: 220 25% 94%;
  --primary: 263 90% 68%;
  --primary-foreground: 231 28% 9%;
  --secondary: 184 75% 49%;
  --secondary-foreground: 230 30% 9%;
  --muted: 229 24% 18%;
  --muted-foreground: 223 16% 72%;
  --destructive: 352 86% 66%;
  --destructive-foreground: 230 30% 9%;
  --border: 229 22% 25%;
  --card: 230 26% 13%;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.25);
  --shadow-md: 0 14px 34px rgba(0,0,0,0.32);
  --shadow-lg: 0 26px 80px rgba(0,0,0,0.45);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: hsl(var(--foreground));
  background:
    radial-gradient(circle at 10% 0%, hsl(var(--primary) / 0.16), transparent 28rem),
    radial-gradient(circle at 95% 12%, hsl(var(--secondary) / 0.18), transparent 25rem),
    hsl(var(--background));
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }

.focus-ring:focus-visible {
  outline: 3px solid hsl(var(--primary) / 0.32);
  outline-offset: 3px;
}

.glass-card {
  background: hsl(var(--card) / 0.82);
  border: 1px solid hsl(var(--border));
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(18px);
}

.soft-grid {
  background-image: linear-gradient(hsl(var(--border) / 0.45) 1px, transparent 1px), linear-gradient(90deg, hsl(var(--border) / 0.45) 1px, transparent 1px);
  background-size: 32px 32px;
}

.task-card {
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
}
.task-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: hsl(var(--primary) / 0.38);
}

.skeleton {
  position: relative;
  overflow: hidden;
  background: hsl(var(--muted));
}
.skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, hsl(var(--card) / 0.7), transparent);
  animation: shimmer 1.4s infinite;
}
@keyframes shimmer { 100% { transform: translateX(100%); } }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: hsl(var(--muted) / 0.55); }
::-webkit-scrollbar-thumb { background: hsl(var(--primary) / 0.35); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: hsl(var(--primary) / 0.55); }