/* === APP LAYOUT === */
.app-nav {
  position: sticky; top: 0; z-index: 100;
  padding: 16px 40px;
  background: rgba(15, 25, 35, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 24px;
}
.app-logo {
  display: flex; align-items: center; gap: 8px;
  text-decoration: none; color: var(--fg);
  font-family: var(--font-display); font-size: 1.1rem; font-weight: 600;
}
.app-nav-links { display: flex; gap: 4px; flex: 1; }
.nav-link {
  text-decoration: none; color: var(--fg-2); font-size: 0.88rem;
  padding: 6px 12px; border-radius: 6px; transition: all 0.15s;
}
.nav-link:hover { color: var(--fg); background: var(--bg-3); }
.nav-link.active { color: var(--amber); background: var(--amber-dim); }
.app-nav-user { display: flex; align-items: center; gap: 16px; margin-left: auto; }

/* === APP CONTAINER === */
.app-container {
  max-width: 1140px; margin: 0 auto;
  padding: 48px 40px 80px;
}
.app-header { margin-bottom: 40px; }
.app-header h1 {
  font-family: var(--font-display); font-size: 2rem; font-weight: 700;
  color: var(--fg); letter-spacing: -0.02em; margin-bottom: 8px;
}
.text-muted { color: var(--fg-2); font-size: 0.9rem; }

/* === STATS === */
.stats-row {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 40px;
}
.stat-card {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 10px; padding: 24px; text-align: center;
}
.stat-value {
  font-family: var(--font-display); font-size: 2.4rem; font-weight: 700;
  color: var(--amber); line-height: 1; margin-bottom: 8px;
}
.stat-label { font-size: 0.82rem; color: var(--fg-2); }

/* === ENGAGEMENT === */
.engagement-section {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  margin-bottom: 32px;
  grid-column: 1 / -1;
}
.engagement-card {
  background: linear-gradient(135deg, var(--bg-2) 0%, var(--bg-3) 100%);
  border: 1px solid var(--border); border-radius: 10px; padding: 20px 24px;
}
.engagement-label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--fg-2); margin-bottom: 6px; }
.engagement-value {
  font-family: var(--font-display); font-size: 2rem; font-weight: 700;
  color: var(--amber); line-height: 1.1; margin-bottom: 6px;
}
.engagement-unit { font-size: 0.9rem; font-weight: 500; color: var(--fg-2); margin-left: 6px; }
.engagement-sub { font-size: 0.78rem; color: var(--fg-3); }
.engagement-card.confidence .engagement-value[data-tier="strong"] { color: var(--sage); }
.engagement-card.confidence .engagement-value[data-tier="steady"] { color: var(--amber); }
.engagement-card.confidence .engagement-value[data-tier="catch_up"] { color: #e85555; }
.engagement-card.confidence .engagement-value[data-tier="just_started"] { color: var(--fg-2); }

/* === DASHBOARD GRID === */
.dashboard-grid {
  display: grid; grid-template-columns: 1fr 320px; gap: 40px;
}
.dashboard-main, .dashboard-sidebar { min-width: 0; }
.section-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px;
}
.section-header h2 { font-size: 1.1rem; font-weight: 600; color: var(--fg); }
.text-link { color: var(--amber); text-decoration: none; font-size: 0.85rem; }
.text-link:hover { text-decoration: underline; }

/* === TASKS === */
.task-list { display: flex; flex-direction: column; gap: 8px; }
.task-card {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 8px; padding: 16px 20px;
  display: flex; align-items: flex-start; gap: 16px;
  transition: border-color 0.15s;
}
.task-card:hover { border-color: var(--amber); }
.task-card.completed { opacity: 0.5; }
.task-priority-dot {
  width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; margin-top: 5px;
}
.priority-urgent { background: #e85555; }
.priority-high { background: var(--amber); }
.priority-medium { background: var(--sage); }
.priority-low { background: var(--fg-3); }
.task-body { flex: 1; min-width: 0; }
.task-title { font-weight: 500; color: var(--fg); font-size: 0.92rem; margin-bottom: 4px; }
.task-meta { font-size: 0.78rem; color: var(--fg-3); }
.task-due {
  font-size: 0.78rem; white-space: nowrap; text-align: right;
  padding: 4px 10px; border-radius: 20px; background: var(--bg-3);
}
.task-due.overdue { background: rgba(232, 85, 85, 0.15); color: #e85555; }
.task-due.soon { background: var(--amber-dim); color: var(--amber); }
.task-actions { display: flex; gap: 8px; }

/* === SYSTEMS === */
.systems-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.system-card {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 8px; padding: 14px 18px;
  display: flex; align-items: center; gap: 12px;
}
.system-type-badge {
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em;
  padding: 4px 10px; border-radius: 20px; font-weight: 600;
}
.system-type-badge.hvac { background: var(--amber-dim); color: var(--amber); }
.system-type-badge.water_heater { background: rgba(100,180,255,0.15); color: #64b4ff; }
.system-type-badge.roof { background: rgba(168,197,181,0.15); color: var(--sage); }
.system-type-badge.appliance { background: rgba(200,180,255,0.15); color: #c8b4ff; }
.system-type-badge.other { background: var(--bg-3); color: var(--fg-3); }
.system-info { flex: 1; }
.system-name { font-size: 0.9rem; font-weight: 500; color: var(--fg); }
.system-meta { font-size: 0.78rem; color: var(--fg-3); }
.system-age { font-size: 0.78rem; color: var(--fg-3); }

/* === ALERTS === */
.alerts-container { display: flex; flex-direction: column; gap: 8px; }
.alert-card {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 8px; padding: 16px 20px;
  display: flex; align-items: flex-start; gap: 14px;
  border-left: 3px solid transparent;
  transition: all 0.15s;
}
.alert-card.unread { border-left-color: var(--amber); background: rgba(232,165,75,0.03); }
.alert-card.urgent { border-left-color: #e85555; }
.alert-icon { color: var(--amber); flex-shrink: 0; margin-top: 2px; }
.alert-body { flex: 1; }
.alert-title { font-weight: 500; color: var(--fg); font-size: 0.92rem; margin-bottom: 4px; }
.alert-message { font-size: 0.85rem; color: var(--fg-2); }
.alert-time { font-size: 0.75rem; color: var(--fg-3); margin-top: 4px; }
.alerts-controls { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
.filter-tabs { display: flex; gap: 4px; }
.filter-tab {
  background: none; border: 1px solid var(--border); color: var(--fg-2);
  padding: 6px 14px; border-radius: 6px; cursor: pointer; font-size: 0.85rem;
  transition: all 0.15s;
}
.filter-tab.active { background: var(--amber); color: var(--bg); border-color: var(--amber); }
.filter-tab:hover:not(.active) { border-color: var(--amber); color: var(--amber); }

/* === CALENDAR === */
.calendar-controls {
  display: flex; align-items: center; gap: 16px; margin-bottom: 24px;
}
.calendar-filter { display: flex; align-items: center; gap: 16px; margin-left: auto; }
.calendar-filter label { display: flex; align-items: center; gap: 6px; font-size: 0.85rem; color: var(--fg-2); }
.calendar-grid {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 1px;
  background: var(--border); border: 1px solid var(--border); border-radius: 10px; overflow: hidden;
  margin-bottom: 40px;
}
.cal-header { background: var(--bg-3); padding: 12px 8px; text-align: center; font-size: 0.75rem; color: var(--fg-3); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }
.cal-day { background: var(--bg-2); min-height: 100px; padding: 8px; }
.cal-day-num { font-size: 0.8rem; color: var(--fg-3); margin-bottom: 6px; }
.cal-day.today .cal-day-num { color: var(--amber); font-weight: 700; }
.cal-task-dot { width: 6px; height: 6px; border-radius: 50%; display: inline-block; margin: 1px; }
.cal-task-dot.urgent { background: #e85555; }
.cal-task-dot.high { background: var(--amber); }
.cal-task-dot.medium { background: var(--sage); }
.cal-task-dot.low { background: var(--fg-3); }

/* === CALENDAR TASK POPOVER === */
.cal-task-popover {
  position: absolute;
  z-index: 150;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  width: 280px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  cursor: default;
}
.cal-task-popover .task-title { font-weight: 600; font-size: 0.92rem; color: var(--fg); margin-bottom: 8px; }
.cal-task-popover .task-desc { font-size: 0.82rem; color: var(--fg-2); margin-bottom: 10px; line-height: 1.5; }
.cal-task-popover .popover-meta { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.cal-task-popover .popover-tag {
  font-size: 0.7rem; padding: 3px 8px; border-radius: 12px;
  background: var(--bg-3); color: var(--fg-2); text-transform: capitalize;
}
.cal-task-popover .popover-tag.urgent { background: rgba(232,85,85,0.15); color: #e85555; }
.cal-task-popover .popover-tag.high { background: var(--amber-dim); color: var(--amber); }
.cal-task-popover .popover-actions { display: flex; gap: 8px; }

.cal-day.has-popover { position: relative; }

/* === FIRST-RUN BANNER === */
.setup-banner {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 12px; padding: 24px 28px; margin-bottom: 28px;
  display: flex; align-items: center; gap: 20px;
}
.setup-banner-icon { flex-shrink: 0; color: var(--amber); }
.setup-banner-content { flex: 1; }
.setup-banner-content h2 { font-size: 1rem; font-weight: 600; color: var(--fg); margin-bottom: 4px; }
.setup-banner-content p { font-size: 0.88rem; color: var(--fg-2); }
.setup-banner-actions { display: flex; gap: 10px; flex-shrink: 0; }

/* === DOC TYPE SELECTOR === */
.doc-type-selector {
  display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap;
}
.doc-type-selector label {
  font-size: 0.78rem; padding: 4px 12px; border-radius: 6px;
  background: var(--bg-3); border: 1px solid var(--border);
  color: var(--fg-2); cursor: pointer; transition: all 0.15s;
}
.doc-type-selector input[type=radio] { display: none; }
.doc-type-selector input[type=radio]:checked + label {
  background: var(--amber-dim); border-color: var(--amber); color: var(--amber);
}
.doc-type-selector label:hover { border-color: var(--amber); color: var(--amber); }

/* === TASK LIST EMPTY STATE === */
.task-list-empty {
  text-align: center; padding: 40px 24px;
  background: var(--bg-2); border: 1px dashed var(--border);
  border-radius: 10px;
}
.task-list-empty p { color: var(--fg-2); font-size: 0.88rem; margin-bottom: 16px; }

/* === DOCUMENTS === */
.doc-upload-area {
  border: 2px dashed var(--border); border-radius: 10px;
  padding: 40px; text-align: center; margin-bottom: 32px;
  transition: border-color 0.2s;
}
.doc-upload-area.drag-over { border-color: var(--amber); background: var(--amber-dim); }
.doc-upload-area p { color: var(--fg-2); font-size: 0.9rem; }
.upload-icon { margin-bottom: 12px; }
.doc-types { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.doc-type-card {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 10px; padding: 24px;
}
.doc-type-card h3 { font-size: 0.95rem; font-weight: 600; color: var(--fg); margin-bottom: 6px; }
.doc-type-card p { font-size: 0.82rem; color: var(--fg-3); margin-bottom: 16px; }
.doc-list { display: flex; flex-direction: column; gap: 6px; }
.doc-item {
  display: flex; align-items: center; gap: 10px;
  background: var(--bg-3); border-radius: 6px; padding: 10px 12px;
}
.doc-item a { flex: 1; font-size: 0.85rem; color: var(--fg-2); text-decoration: none; }
.doc-item a:hover { color: var(--amber); text-decoration: underline; }
.doc-delete { color: var(--fg-3); cursor: pointer; font-size: 0.8rem; }
.doc-delete:hover { color: #e85555; }

/* === SETUP === */
.setup-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-bottom: 40px; }
.setup-card {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 12px; padding: 32px;
}
.setup-card-title { font-size: 1.1rem; font-weight: 600; color: var(--fg); margin-bottom: 24px; }
.setup-footer { display: flex; justify-content: space-between; align-items: center; }

/* === FORMS === */
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-row { display: flex; gap: 12px; flex-wrap: wrap; }
.form-group label { font-size: 0.82rem; font-weight: 500; color: var(--fg-2); }
.form-group input, .form-group select, .form-group textarea {
  background: var(--bg-3); border: 1px solid var(--border); border-radius: 7px;
  color: var(--fg); padding: 10px 14px; font-size: 0.9rem;
  font-family: var(--font-body); transition: border-color 0.15s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--amber);
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--fg-3); }
.divider { height: 1px; background: var(--border); margin: 24px 0; }

/* === TOGGLES === */
.toggle-row { display: flex; align-items: flex-start; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--border); }
.toggle-row:last-child { border-bottom: none; }
.toggle-row-label { flex: 1; }
.toggle-row-label strong { display: block; font-size: 0.92rem; color: var(--fg); margin-bottom: 4px; }
.toggle-row-label span { font-size: 0.82rem; color: var(--fg-2); }
.toggle-switch { position: relative; width: 40px; height: 22px; flex-shrink: 0; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; cursor: pointer; inset: 0;
  background: var(--bg-3); border: 1px solid var(--border); border-radius: 22px;
  transition: background 0.15s;
}
.toggle-slider:before {
  content: ''; position: absolute; height: 16px; width: 16px;
  left: 2px; top: 2px; background: var(--fg-2); border-radius: 50%;
  transition: transform 0.15s, background 0.15s;
}
.toggle-switch input:checked + .toggle-slider { background: var(--amber-dim); border-color: var(--amber); }
.toggle-switch input:checked + .toggle-slider:before { transform: translateX(18px); background: var(--amber); }

/* === BUTTONS === */
.btn-primary {
  background: var(--amber); color: var(--bg); border: none;
  padding: 12px 24px; border-radius: 8px; font-size: 0.92rem; font-weight: 600;
  cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 8px;
  transition: opacity 0.15s; font-family: var(--font-body);
}
.btn-primary:hover { opacity: 0.85; }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-secondary {
  background: var(--bg-3); color: var(--fg); border: 1px solid var(--border);
  padding: 10px 20px; border-radius: 8px; font-size: 0.88rem; font-weight: 500;
  cursor: pointer; font-family: var(--font-body); transition: border-color 0.15s;
}
.btn-secondary:hover { border-color: var(--amber); color: var(--amber); }
.btn-ghost {
  background: none; border: none; color: var(--fg-2); font-size: 0.88rem;
  cursor: pointer; padding: 6px 12px; border-radius: 6px; font-family: var(--font-body);
  transition: color 0.15s;
}
.btn-ghost:hover { color: var(--fg); }
.btn-block { width: 100%; justify-content: center; }
.btn-small { padding: 6px 14px; font-size: 0.82rem; }

/* === EMPTY STATE === */
.empty-state {
  text-align: center; padding: 60px 40px;
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 12px;
}
.empty-icon { margin-bottom: 16px; }
.empty-state h2 { font-size: 1.2rem; font-weight: 600; color: var(--fg); margin-bottom: 8px; }
.empty-state p { color: var(--fg-2); font-size: 0.9rem; margin-bottom: 24px; }

/* === LOADING === */
.spinner {
  width: 16px; height: 16px; border: 2px solid rgba(15,25,35,0.3);
  border-top-color: var(--bg); border-radius: 50%;
  animation: spin 0.6s linear infinite; display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-overlay {
  display: flex; align-items: center; justify-content: center;
  min-height: 200px; color: var(--fg-3); font-size: 0.9rem; gap: 10px;
}

/* === RESPONSIVE === */
@media (max-width: 900px) {
  .app-nav { padding: 14px 20px; flex-wrap: wrap; }
  .app-container { padding: 32px 20px 60px; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .dashboard-grid { grid-template-columns: 1fr; }
  .setup-grid { grid-template-columns: 1fr; }
  .doc-types { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .stats-row { grid-template-columns: 1fr 1fr; }
  .engagement-section { grid-template-columns: 1fr; }
  .calendar-grid { font-size: 0.75rem; }
  .cal-day { min-height: 70px; }
}

/* Auth pages */
.auth-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.auth-card {
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 16px;
  padding: 40px; width: 100%; max-width: 420px;
}
.auth-card h1 { font-family: var(--font-display); font-size: 1.6rem; font-weight: 700; color: var(--fg); margin-bottom: 8px; }
.auth-card p { color: var(--fg-2); font-size: 0.9rem; margin-bottom: 28px; }
.auth-card .form-group { margin-bottom: 14px; }
.auth-card .btn-primary { width: 100%; justify-content: center; margin-top: 8px; }
.auth-switch { text-align: center; font-size: 0.85rem; color: var(--fg-3); margin-top: 20px; }
.auth-switch a { color: var(--amber); text-decoration: none; }
.auth-error { background: rgba(232,85,85,0.1); border: 1px solid rgba(232,85,85,0.3); border-radius: 7px; padding: 10px 14px; color: #e85555; font-size: 0.85rem; margin-bottom: 16px; display: none; }

/* === AUTH TRUST STRIP === */
.auth-trust-strip {
  display: flex; flex-direction: column; gap: 10px;
  margin: 18px 0 4px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.auth-trust-strip .trust-badge {
  padding: 12px 14px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex; flex-direction: column; gap: 4px;
  transition: border-color 0.15s;
}
.auth-trust-strip .trust-badge:hover { border-color: var(--amber); }
.auth-trust-strip .trust-badge-title {
  font-family: var(--font-display);
  font-size: 0.85rem; font-weight: 600;
  color: var(--amber); letter-spacing: -0.01em;
}
.auth-trust-strip .trust-badge-body {
  font-size: 0.75rem; color: var(--fg-2); line-height: 1.45;
}

/* === PWA INSTALL HINT === */
.install-hint {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  background: var(--bg-2); border: 1px solid var(--amber); border-radius: 10px;
  padding: 14px 20px; margin-bottom: 24px;
}
.install-hint[hidden] { display: none; }
.install-hint strong { display: block; font-size: 0.92rem; color: var(--fg); }
.install-hint .install-hint-actions { display: flex; align-items: center; gap: 8px; }
.install-hint .install-close {
  background: none; border: none; color: var(--fg-3); cursor: pointer;
  font-size: 1rem; padding: 4px 8px;
}
@media (max-width: 600px) {
  .install-hint { flex-direction: column; align-items: flex-start; gap: 10px; }
}