/* ── Dashboard ── */

/* Daily Goal */
.goal-bar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
  padding: 18px 20px;
  transition: background .3s;
}
.goal-bar-header {
  align-items: center; display: flex; justify-content: space-between;
  margin-bottom: 12px; flex-wrap: wrap; gap: 8px;
}
.goal-bar-left { align-items: center; display: flex; gap: 8px; }
.goal-icon { width: 17px; height: 17px; color: var(--accent); }
.goal-title { font-size: 14px; font-weight: 600; }
.goal-progress-label { font-family: var(--font-mono); font-size: 13px; color: var(--accent); font-weight: 700; }
.goal-bar-track {
  background: var(--bg-2); border-radius: 50px; height: 10px; overflow: hidden;
  margin-bottom: 8px;
}
.goal-bar-fill {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 50px; height: 100%; min-width: 0;
  transition: width .6s cubic-bezier(.4,0,.2,1);
}
.goal-bar-footer { color: var(--text-subtle); font-size: 12px; }

/* Stats grid */
.stats-grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: 12px; margin-bottom: 4px;
}
.stat-card {
  align-items: center; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-sm); display: flex;
  gap: 12px; padding: 18px 16px; transition: transform .2s, box-shadow .2s;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.stat-icon-wrap {
  border-radius: 10px; display: flex; align-items: center; justify-content: center;
  padding: 9px; flex-shrink: 0;
}
.stat-icon-wrap svg { width: 18px; height: 18px; }
.accent-total   { background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); }
.accent-math    { background: color-mix(in srgb, var(--math-color) 12%, transparent); color: var(--math-color); }
.accent-physics { background: color-mix(in srgb, var(--physics-color) 12%, transparent); color: var(--physics-color); }
.accent-business{ background: color-mix(in srgb, var(--business-color) 12%, transparent); color: var(--business-color); }
.accent-cs      { background: color-mix(in srgb, var(--cs-color) 12%, transparent); color: var(--cs-color); }

.stat-body {}
.stat-value { font-size: 22px; font-weight: 800; font-family: var(--font-mono); letter-spacing: -.5px; line-height: 1; }
.stat-label { color: var(--text-muted); font-size: 11px; font-weight: 600; margin-top: 3px; text-transform: uppercase; letter-spacing: .5px; }

.subject-card.math .stat-value     { color: var(--math-color); }
.subject-card.physics .stat-value  { color: var(--physics-color); }
.subject-card.business .stat-value { color: var(--business-color); }
.subject-card.cs .stat-value       { color: var(--cs-color); }

/* Exam widgets */
.exam-widgets-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; }
.exam-widget {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); padding: 16px 18px; position: relative; transition: transform .2s;
}
.exam-widget:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.exam-widget.urgent { border-color: color-mix(in srgb, var(--danger) 35%, transparent); background: color-mix(in srgb, var(--danger) 5%, var(--surface)); }
.exam-widget.soon   { border-color: color-mix(in srgb, var(--warn) 35%, transparent); background: color-mix(in srgb, var(--warn) 5%, var(--surface)); }
.exam-widget-subject { font-size: 11px; font-weight: 700; letter-spacing: .7px; text-transform: uppercase; margin-bottom: 4px; color: var(--accent); }
.exam-widget.urgent .exam-widget-subject { color: var(--danger); }
.exam-widget.soon   .exam-widget-subject { color: var(--warn); }
.exam-widget-name { font-size: 14px; font-weight: 700; margin-bottom: 10px; }
.exam-countdown { display: grid; grid-template-columns: repeat(4, 1fr); gap: 5px; margin-bottom: 8px; }
.exam-unit { background: var(--bg-2); border-radius: var(--radius-xs); padding: 5px; text-align: center; }
.exam-unit-val { display: block; font-family: var(--font-mono); font-size: 16px; font-weight: 700; line-height: 1; }
.exam-unit-label { display: block; font-size: 9px; text-transform: uppercase; letter-spacing: .4px; color: var(--text-muted); margin-top: 2px; }
.exam-widget-actions { display: flex; gap: 4px; position: absolute; right: 12px; top: 12px; }
.exam-action-btn {
  background: none; border: none; border-radius: 4px; color: var(--text-subtle);
  cursor: pointer; display: flex; padding: 4px; transition: all .15s;
}
.exam-action-btn:hover { background: var(--bg-2); color: var(--text); }
.exam-action-btn svg { width: 13px; height: 13px; }
.exam-past-label { color: var(--text-subtle); font-size: 12px; }
.exam-empty {
  border: 2px dashed var(--border); border-radius: var(--radius); color: var(--text-subtle);
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 28px; font-size: 13px; text-align: center; width: 100%;
}
.exam-empty svg { width: 28px; height: 28px; opacity: .4; }

/* To-Do */
.todo-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); padding: 16px 18px;
}
.todo-add-row { display: flex; gap: 10px; margin-bottom: 14px; }
.todo-input { flex: 1; }
.todo-list { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.todo-item {
  align-items: center; background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-sm); display: flex; gap: 10px; padding: 10px 14px;
  transition: background .15s;
}
.todo-item.done { opacity: .55; }
.todo-item.done .todo-text { text-decoration: line-through; color: var(--text-muted); }
.todo-checkbox {
  appearance: none; -webkit-appearance: none;
  background: var(--surface); border: 2px solid var(--border-strong);
  border-radius: 5px; cursor: pointer; flex-shrink: 0;
  height: 18px; width: 18px; transition: all .15s;
  display: flex; align-items: center; justify-content: center;
}
.todo-checkbox:checked {
  background: var(--accent); border-color: var(--accent);
}
.todo-checkbox:checked::after {
  content: ''; width: 9px; height: 5px; border: 2px solid #fff;
  border-top: none; border-right: none; display: block;
  transform: rotate(-45deg) translate(1px,-1px);
}
.todo-text { flex: 1; font-size: 14px; }
.todo-del-btn {
  background: none; border: none; border-radius: 4px; color: var(--text-subtle);
  cursor: pointer; display: flex; padding: 3px; transition: color .15s;
}
.todo-del-btn:hover { color: var(--danger); }
.todo-del-btn svg { width: 14px; height: 14px; }
.todo-count { font-size: 12px; color: var(--text-subtle); font-weight: 500; }
.todo-empty { color: var(--text-subtle); font-size: 13px; padding: 12px 0; text-align: center; }

/* Recent Sessions */
.recent-sessions-list { display: flex; flex-direction: column; gap: 8px; }
.session-item {
  align-items: center; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); box-shadow: var(--shadow-sm);
  display: flex; gap: 12px; padding: 12px 16px; transition: background .15s, box-shadow .15s;
}
.session-item:hover { background: var(--surface-hover); box-shadow: var(--shadow); }
.session-subject-badge {
  border-radius: 8px; font-size: 11px; font-weight: 700; letter-spacing: .4px;
  padding: 4px 10px; text-transform: uppercase; white-space: nowrap;
}
.badge-math     { background: color-mix(in srgb, var(--math-color) 12%, transparent); color: var(--math-color); }
.badge-physics  { background: color-mix(in srgb, var(--physics-color) 12%, transparent); color: var(--physics-color); }
.badge-business { background: color-mix(in srgb, var(--business-color) 12%, transparent); color: var(--business-color); }
.badge-cs       { background: color-mix(in srgb, var(--cs-color) 12%, transparent); color: var(--cs-color); }
.session-info { flex: 1; min-width: 0; }
.session-meta { color: var(--text-muted); font-size: 12px; margin-top: 1px; }
.session-notes { color: var(--text-muted); font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 260px; }
.session-duration { font-family: var(--font-mono); font-size: 15px; font-weight: 700; color: var(--accent); flex-shrink: 0; }
.session-actions { display: flex; gap: 4px; flex-shrink: 0; }
.session-btn {
  background: none; border: 1px solid var(--border); border-radius: var(--radius-xs);
  color: var(--text-muted); cursor: pointer; display: flex; font-size: 14px;
  padding: 5px 7px; transition: all .15s;
}
.session-btn:hover { background: var(--bg-2); color: var(--text); border-color: var(--border-strong); }
.session-btn svg { width: 13px; height: 13px; }

/* Responsive */
@media (max-width: 1200px) { .stats-grid { grid-template-columns: 1fr 1fr; } #stat-total { grid-column: span 2; } }
@media (max-width: 700px)  { .stats-grid { grid-template-columns: 1fr 1fr; } #stat-total { grid-column: span 2; } }