:root {
  --bg-primary: #040914;
  --bg-secondary: #0a1128;
  --accent-primary: #3b82f6;
  --accent-hover: #60a5fa;
  --accent-glow: rgba(59, 130, 246, 0.5);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-border: rgba(255, 255, 255, 0.08);
  --success: #10b981;
  --danger: #ef4444;
  --danger-glow: rgba(239, 68, 68, 0.4);
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
  font-family: var(--font-sans);
  background: radial-gradient(circle at 50% 0%, var(--bg-secondary), var(--bg-primary) 80%);
  color: var(--text-main);
  min-height: 100vh;
  padding: clamp(16px, 3vw, 32px);
  -webkit-font-smoothing: antialiased;
}

.glass-panel {
  background: linear-gradient(145deg, rgba(255,255,255,0.05), rgba(255,255,255,0.01));
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--surface-border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
}

header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 32px; padding: 16px 24px; border-radius: 20px;
  flex-wrap: wrap; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 16px; }
.logo-img { width: 50px; height: 50px; border-radius: 12px; object-fit: cover; box-shadow: 0 0 15px var(--accent-glow); }
.brand h1 { font-size: 1.3rem; font-weight: 800; letter-spacing: -0.5px; }
.brand span { font-size: 0.85rem; color: var(--accent-primary); font-weight: 600; text-transform: uppercase; }

.status-bar { display: flex; gap: 12px; flex-wrap: wrap; }
.status-badge {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: 8px; background: rgba(0,0,0,0.4);
  font-size: 0.8rem; font-weight: 600; color: var(--text-muted);
  border: 1px solid var(--surface-border); box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
}
.status-badge svg { width: 14px; height: 14px; fill: currentColor; }

main {
  max-width: 1300px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 420px; gap: 24px;
}
.left-col, .right-col { display: flex; flex-direction: column; gap: 24px; }

h2 { font-size: 1.1rem; font-weight: 600; color: var(--text-muted); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 1px; }
.time-display { font-size: clamp(3.5rem, 6vw, 5.5rem); font-weight: 800; font-variant-numeric: tabular-nums; text-align: center; letter-spacing: -2px; text-shadow: 0 0 40px var(--accent-glow); margin: 20px 0; }
.ms-display { font-size: clamp(1.2rem, 3vw, 1.8rem); color: var(--text-muted); }

.divider { border: 0; height: 1px; background: var(--surface-border); margin: 24px 0; }
.controls { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

.btn {
  background: linear-gradient(145deg, rgba(255,255,255,0.08), rgba(255,255,255,0.02));
  color: var(--text-main); border: 1px solid rgba(255,255,255,0.1);
  padding: 12px 20px; border-radius: 12px; font-size: 0.9rem; font-weight: 600;
  cursor: pointer; transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex; align-items: center; gap: 8px; flex: 1 1 auto; justify-content: center;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1), inset 0 1px 0 rgba(255,255,255,0.05);
  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}
.btn:hover { background: rgba(255,255,255,0.12); transform: translateY(-3px); box-shadow: 0 6px 12px rgba(0,0,0,0.2); }
.btn:active { transform: translateY(0); }

.btn.primary { 
  background: linear-gradient(135deg, var(--accent-primary), #2563eb); 
  border-color: var(--accent-hover); box-shadow: 0 4px 20px var(--accent-glow); 
}
.btn.primary:hover { filter: brightness(1.1); box-shadow: 0 6px 25px var(--accent-glow); }

.btn.danger { background: rgba(239, 68, 68, 0.15); color: var(--danger); border-color: rgba(239, 68, 68, 0.4); }
.btn.danger:hover { background: rgba(239, 68, 68, 0.25); box-shadow: 0 4px 15px var(--danger-glow); }

.btn.active-toggle { background: var(--success); color: #000; border-color: var(--success); text-shadow: none; }

.wave-info {
  background: rgba(0,0,0,0.4); padding: 16px; border-radius: 10px;
  font-size: 0.9rem; color: var(--text-muted); border: 1px solid var(--surface-border);
  line-height: 1.5; margin-top: 8px; text-align: center;
}

.input-group { display: flex; gap: 8px; }
input[type="text"], input[type="file"] {
  width: 100%; padding: 12px 16px; background: rgba(0,0,0,0.4); border: 1px solid var(--surface-border);
  border-radius: 12px; color: #fff; font-family: var(--font-sans); outline: none; transition: all 0.3s;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
}
input:focus { border-color: var(--accent-primary); box-shadow: 0 0 0 2px var(--accent-glow); }

.task-list { margin-top: 16px; display: flex; flex-direction: column; gap: 8px; max-height: 250px; overflow-y: auto; padding-right: 4px; }
.task-item { display: flex; align-items: center; gap: 12px; padding: 14px; background: rgba(0,0,0,0.3); border-radius: 10px; font-size: 0.95rem; border: 1px solid transparent; transition: 0.2s; }
.task-item:hover { background: rgba(255,255,255,0.05); border-color: var(--surface-border); }
.task-checkbox { width: 20px; height: 20px; cursor: pointer; accent-color: var(--accent-primary); }
.task-item.done span { text-decoration: line-through; color: var(--text-muted); }
.delete-btn { margin-left: auto; background: none; border: none; color: var(--danger); cursor: pointer; font-size: 1.2rem; opacity: 0.6; }
.delete-btn:hover { opacity: 1; transform: scale(1.1); }

#floatingWidget {
  position: fixed; bottom: 20px; right: 20px; width: 220px;
  background: rgba(10, 17, 40, 0.95); backdrop-filter: blur(12px);
  border: 1px solid var(--accent-primary); border-radius: 14px; padding: 14px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5); z-index: 9999; display: none;
  text-align: center;
}
#floatingWidget .widget-time { font-size: 1.8rem; font-weight: 800; color: var(--accent-primary); margin: 6px 0; }

.modal-overlay {
  position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
  background: rgba(0,0,0,0.85); backdrop-filter: blur(10px);
  display: flex; justify-content: center; align-items: center; z-index: 1000;
}
.modal-content { text-align: center; max-width: 420px; width: 90%; animation: popIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275); }
.modal-content h2 { color: var(--success); font-size: 1.8rem; margin-bottom: 12px; }
.modal-content p { color: var(--text-muted); font-size: 1rem; line-height: 1.6; }
.modal-content .btn { margin: 24px auto 0; width: 100%; font-size: 1.1rem; }

@keyframes popIn { 0% { opacity: 0; transform: scale(0.9); } 100% { opacity: 1; transform: scale(1); } }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: rgba(0,0,0,0.2); border-radius: 10px; }
::-webkit-scrollbar-thumb { background: var(--surface-border); border-radius: 10px; }

@media (max-width: 1024px) {
  main { grid-template-columns: 1fr; }
  header { flex-direction: column; align-items: center; text-align: center; }
  .status-bar { width: 100%; justify-content: center; }
}