:root {
  --bg-dark: #020617;
  --bg-card: rgba(30, 41, 59, 0.7);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --accent: #8b5cf6;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --border: rgba(51, 65, 85, 0.5);
  --glass: rgba(15, 23, 42, 0.6);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.15) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(139, 92, 246, 0.15) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.header h1 {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(to right, #60a5fa, #c084fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-top: 0.5rem;
}

.back-btn {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: color 0.2s;
}

.back-btn:hover {
  color: white;
}

.card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
  margin-bottom: 2rem;
}

.card h2 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.counter-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.counter-box {
  background: rgba(15, 23, 42, 0.4);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  transition: transform 0.2s;
}

.counter-box:hover {
  transform: translateY(-2px);
  border-color: rgba(96, 165, 250, 0.3);
}

.counter-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.counter-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
}

.btn-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-circle:hover {
  transform: scale(1.1);
}

.btn-circle:active {
  transform: scale(0.95);
}

.btn-minus {
  background: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-minus:hover {
  background: rgba(239, 68, 68, 0.4);
}

.btn-plus {
  background: rgba(16, 185, 129, 0.2);
  color: #6ee7b7;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.btn-plus:hover {
  background: rgba(16, 185, 129, 0.4);
}

.counter-value {
  font-size: 3rem;
  font-weight: 800;
  color: white;
  min-width: 60px;
}

.grid-5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

.grid-6 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.btn-toggle {
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 1rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-toggle:hover {
  background: rgba(51, 65, 85, 0.8);
  color: white;
}

.btn-toggle.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary-hover);
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.3);
}

.btn-quality {
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 1.25rem;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-quality:hover {
  transform: translateY(-2px);
}

.btn-quality.good.active {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border-color: #10b981;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
}

.btn-quality.bad.active {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
  border-color: #ef4444;
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.2);
}

.btn-outcome {
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid var(--border);
  color: white;
  padding: 1rem;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-outcome:hover {
  transform: translateY(-2px);
  background: var(--primary);
  border-color: var(--primary-hover);
}

.btn-outcome.to:hover {
  background: var(--danger);
  border-color: #dc2626;
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-height: 300px;
  overflow-y: auto;
  padding-right: 0.5rem;
}

.history-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(15, 23, 42, 0.4);
  border: 1px solid var(--border);
  padding: 1rem 1.25rem;
  border-radius: 8px;
  animation: slideIn 0.3s ease-out;
}

.history-details {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.badge {
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.1);
}

.badge.outcome {
  background: rgba(59, 130, 246, 0.2);
  color: #93c5fd;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.badge.good {
  color: #34d399;
}

.badge.bad {
  color: #f87171;
}

.delete-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.25rem;
  transition: color 0.2s;
}

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

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-10px); }
  to { opacity: 1; transform: translateX(0); }
}

::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: rgba(15, 23, 42, 0.5);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(148, 163, 184, 0.5);
}