/* 4 Quarters — Core Styles */
:root {
  --primary: #4F46E5;
  --primary-dark: #3730A3;
  --accent: #F59E0B;
  --success: #10B981;
  --danger: #EF4444;
  --dark: #0F0F1A;
  --dark-card: #1A1A2E;
  --dark-border: #2D2D4E;
  --text-muted: #6B7280;
}

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

body {
  background-color: var(--dark);
  color: #E5E7EB;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* Nav items */
.nav-item { color: #9CA3AF; }
.nav-item:hover { background: rgba(79,70,229,0.12); color: #fff; }
.nav-item.active { background: rgba(79,70,229,0.2); color: #818CF8; border-left: 3px solid #4F46E5; }

/* Scrollbar */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--dark); }
::-webkit-scrollbar-thumb { background: var(--dark-border); border-radius: 3px; }

/* Progress bars */
.progress-bar {
  height: 6px;
  background: var(--dark-border);
  border-radius: 99px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, #4F46E5, #818CF8);
  transition: width 0.5s ease;
}

/* Grade badges */
.grade-A { color: #10B981; background: rgba(16,185,129,0.15); border: 1px solid rgba(16,185,129,0.3); }
.grade-B { color: #3B82F6; background: rgba(59,130,246,0.15); border: 1px solid rgba(59,130,246,0.3); }
.grade-C { color: #F59E0B; background: rgba(245,158,11,0.15); border: 1px solid rgba(245,158,11,0.3); }
.grade-D { color: #F97316; background: rgba(249,115,22,0.15); border: 1px solid rgba(249,115,22,0.3); }
.grade-F { color: #EF4444; background: rgba(239,68,68,0.15); border: 1px solid rgba(239,68,68,0.3); }

/* Habit grid */
.habit-grid-container { overflow-x: auto; }
.habit-grid { min-width: 600px; border-collapse: separate; border-spacing: 2px; }
.habit-grid th { font-size: 10px; color: var(--text-muted); padding: 4px 6px; text-align: center; white-space: nowrap; }
.habit-grid td { padding: 2px; }
.habit-cell {
  width: 28px; height: 28px;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid var(--dark-border);
  background: var(--dark);
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s;
  font-size: 11px;
}
.habit-cell:hover { border-color: var(--primary); }
.habit-cell.done-execute { background: rgba(16,185,129,0.25); border-color: #10B981; color: #10B981; }
.habit-cell.done-avoid { background: rgba(16,185,129,0.25); border-color: #10B981; color: #10B981; }
.habit-cell.failed { background: rgba(239,68,68,0.15); border-color: rgba(239,68,68,0.3); }

/* Time blocks calendar */
.time-grid { position: relative; }
.time-slot {
  height: 48px;
  border-bottom: 1px solid var(--dark-border);
  display: flex;
  position: relative;
}
.time-label {
  width: 64px;
  font-size: 11px;
  color: var(--text-muted);
  padding: 4px 8px;
  flex-shrink: 0;
  padding-top: 4px;
}
.time-area {
  flex: 1;
  position: relative;
}
.time-block-event {
  position: absolute;
  left: 4px; right: 4px;
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  overflow: hidden;
  z-index: 2;
  border: 1px solid rgba(255,255,255,0.1);
  min-height: 22px;
}
.time-block-event:hover { opacity: 0.85; }

/* Goal tree */
.goal-tree { }
.goal-node { border-left: 2px solid var(--dark-border); margin-left: 12px; padding-left: 12px; }
.goal-node-header {
  display: flex; align-items: center; gap-8px;
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.15s;
}
.goal-node-header:hover { background: rgba(255,255,255,0.04); }
.goal-chevron { transition: transform 0.2s; }
.goal-chevron.open { transform: rotate(90deg); }

/* Pyramid */
.pyramid-layer {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 0;
}
.pyramid-block {
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  text-align: center;
  padding: 16px;
  margin-bottom: 4px;
  transition: all 0.2s;
  cursor: pointer;
  border: 1px solid rgba(255,255,255,0.08);
}
.pyramid-block:hover { transform: scale(1.01); border-color: rgba(79,70,229,0.5); }

/* AI chat */
.ai-message { animation: slideUp 0.3s ease; }
@keyframes slideUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Toast */
.toast {
  padding: 12px 18px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 240px;
  animation: toastIn 0.3s ease;
  pointer-events: auto;
  border: 1px solid rgba(255,255,255,0.08);
}
.toast-success { background: #064E3B; color: #6EE7B7; }
.toast-error { background: #7F1D1D; color: #FCA5A5; }
.toast-info { background: #1E1B4B; color: #A5B4FC; }
@keyframes toastIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }
@keyframes toastOut { from { opacity: 1; } to { opacity: 0; transform: translateX(20px); } }

/* Forms */
.form-input {
  width: 100%;
  background: var(--dark);
  border: 1px solid var(--dark-border);
  border-radius: 10px;
  padding: 10px 14px;
  color: #fff;
  font-size: 14px;
  transition: border-color 0.2s;
  outline: none;
}
.form-input:focus { border-color: var(--primary); }
.form-label { font-size: 12px; color: #9CA3AF; margin-bottom: 4px; display: block; }
.btn { padding: 10px 20px; border-radius: 10px; font-weight: 600; font-size: 14px; cursor: pointer; transition: all 0.15s; border: none; display: inline-flex; align-items: center; gap: 6px; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: var(--dark-border); color: #9CA3AF; }
.btn-secondary:hover { background: #3D3D60; color: #fff; }
.btn-danger { background: rgba(239,68,68,0.15); color: #EF4444; border: 1px solid rgba(239,68,68,0.3); }
.btn-danger:hover { background: rgba(239,68,68,0.25); }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-xs { padding: 4px 8px; font-size: 11px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Cards */
.card { background: var(--dark-card); border: 1px solid var(--dark-border); border-radius: 14px; padding: 20px; }
.card-sm { background: var(--dark-card); border: 1px solid var(--dark-border); border-radius: 10px; padding: 14px; }

/* Stat card */
.stat-card { background: var(--dark-card); border: 1px solid var(--dark-border); border-radius: 14px; padding: 20px; }
.stat-value { font-size: 28px; font-weight: 800; }
.stat-label { font-size: 12px; color: var(--text-muted); }

/* Onboarding */
.onboarding-step { display: none; }
.onboarding-step.active { display: block; }
.onboarding-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--dark-border); transition: all 0.2s; }
.onboarding-dot.active { background: var(--primary); width: 20px; border-radius: 4px; }

/* Responsive sidebar */
@media (max-width: 768px) {
  #sidebar { transform: translateX(-100%); }
  #sidebar.open { transform: translateX(0); }
  main { margin-left: 0 !important; }
}

/* Inputs placeholder */
::placeholder { color: #4B5563; }

/* Checkbox */
.checkbox-custom {
  width: 18px; height: 18px;
  border: 2px solid var(--dark-border);
  border-radius: 4px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s;
  flex-shrink: 0;
}
.checkbox-custom.checked { background: var(--success); border-color: var(--success); }

/* Score ring */
.score-ring { position: relative; display: inline-block; }

/* Loading spinner */
.spin { animation: spin 1s linear infinite; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

/* Drag hint */
.dragging { opacity: 0.5; }

/* Animate presence */
.fade-in { animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }