/* Smart Toilet – app styles */
:root {
  --app-bg: #0f0f0f;
  --app-surface: #1a1a1a;
  --app-text: #e5e5e5;
  --app-muted: #737373;
  --app-border: #2a2a2a;
  --app-primary: #3b82f6;
  --app-primary-hover: #2563eb;
  --app-error: #dc2626;
  --app-success: #16a34a;
  --app-radius: 8px;
  --app-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

[data-theme="light"] {
  --app-bg: #f5f5f5;
  --app-surface: #fff;
  --app-text: #171717;
  --app-muted: #525252;
  --app-border: #e5e5e5;
  --app-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, sans-serif; background: var(--app-bg); color: var(--app-text); min-height: 100vh; }
.app-root { min-height: 100vh; padding-bottom: 60px; }
.app.hide-bottom-nav .app-root { padding-bottom: 0; }

.top-bar { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; background: var(--app-surface); border-bottom: 1px solid var(--app-border); position: sticky; top: 0; z-index: 10; }
.top-bar-title { font-weight: 600; font-size: 1.1rem; }
.top-bar-link { color: var(--app-primary); text-decoration: none; font-size: 0.95rem; }

.admin-content { padding: 16px; max-width: 640px; margin: 0 auto; }
.card { background: var(--app-surface); border-radius: var(--app-radius); padding: 16px; margin-bottom: 16px; box-shadow: var(--app-shadow); border: 1px solid var(--app-border); }
.section-heading { margin: 0 0 12px; font-size: 1.05rem; }

.form-vertical .field { display: block; margin-bottom: 14px; }
.field-label { display: block; font-size: 0.9rem; color: var(--app-muted); margin-bottom: 4px; }
.field-input { width: 100%; padding: 10px 12px; border: 1px solid var(--app-border); border-radius: 6px; background: var(--app-bg); color: var(--app-text); font-size: 1rem; }
.field-input:focus { outline: none; border-color: var(--app-primary); }
.form-actions { margin-top: 16px; }
.btn-primary { background: var(--app-primary); color: #fff; border: none; padding: 10px 20px; border-radius: 6px; font-size: 1rem; cursor: pointer; }
.btn-primary:hover { background: var(--app-primary-hover); }
.btn-secondary { background: var(--app-surface); color: var(--app-text); border: 1px solid var(--app-border); padding: 8px 16px; border-radius: 6px; cursor: pointer; margin-top: 8px; }

.install-error { color: var(--app-error); margin: 12px 0; }
.report-success { color: var(--app-success); margin: 12px 0; }
.muted { color: var(--app-muted); font-size: 0.95rem; }

.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 12px; }
.stat-card { background: var(--app-bg); padding: 12px; border-radius: 6px; text-align: center; }
.stat-value { display: block; font-size: 1.5rem; font-weight: 700; }
.stat-label { font-size: 0.85rem; color: var(--app-muted); }

.link-list { list-style: none; padding: 0; margin: 0; }
.link-list li { margin-bottom: 8px; }
.link-list a { color: var(--app-primary); text-decoration: none; }

.units-list, .complaints-list { list-style: none; padding: 0; margin: 0; }
.units-list li, .complaints-list li { padding: 10px 0; border-bottom: 1px solid var(--app-border); }
.units-list a, .complaints-list a { color: var(--app-text); text-decoration: none; }
.units-list a:hover, .complaints-list a:hover { color: var(--app-primary); }

/* Citizen home hero & AI info */
.card-hero { text-align: center; padding: 24px 16px; }
.hero-title { margin: 0 0 4px; font-size: 1.5rem; font-weight: 700; }
.hero-tagline { margin: 0 0 12px; font-size: 0.95rem; color: var(--app-primary); }
.hero-desc { margin: 0; font-size: 0.95rem; color: var(--app-muted); line-height: 1.5; }
.card-ai-info .subsection-heading { margin: 16px 0 8px; font-size: 1rem; }
.card-divider { border: none; border-top: 1px solid var(--app-border); margin: 16px 0; }
.bullet-list { margin: 0 0 12px; padding-left: 1.25rem; }
.bullet-list li { margin-bottom: 6px; }
.btn-block { width: 100%; margin-top: 8px; }
.company-line { margin-top: 12px; font-size: 0.9rem; }

/* Chatbot */
.chatbot-wrap { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--app-border); }
.chat-area { margin-top: 12px; }
.chat-messages { min-height: 120px; max-height: 280px; overflow-y: auto; background: var(--app-bg); border-radius: 6px; padding: 12px; margin-bottom: 12px; border: 1px solid var(--app-border); }
.chat-msg { margin-bottom: 12px; }
.chat-msg-user { text-align: right; }
.chat-msg-user .chat-msg-bubble { background: var(--app-primary); color: #fff; margin-left: auto; }
.chat-msg-bot .chat-msg-bubble { background: var(--app-surface); border: 1px solid var(--app-border); }
.chat-msg-bubble { display: inline-block; max-width: 90%; padding: 10px 14px; border-radius: 12px; text-align: left; font-size: 0.95rem; line-height: 1.4; white-space: pre-wrap; }
.chat-msg-label { font-size: 0.75rem; color: var(--app-muted); margin-bottom: 4px; }
.chat-input-wrap { display: flex; gap: 8px; margin-bottom: 6px; }
.chat-input { flex: 1; margin-bottom: 0; }
.chat-send { flex-shrink: 0; }
.chat-hint { font-size: 0.8rem; margin: 0; }
.chat-typing { color: var(--app-muted); font-style: italic; }

/* Find: unit row with Navigate */
.unit-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.unit-info { flex: 1; min-width: 0; }
.btn-navigate { display: inline-block; padding: 6px 14px; background: var(--app-primary); color: #fff; border-radius: 6px; font-size: 0.85rem; text-decoration: none; white-space: nowrap; }
.btn-navigate:hover { background: var(--app-primary-hover); color: #fff; }

.detail-list { margin: 0; }
.detail-list dt { font-size: 0.85rem; color: var(--app-muted); margin-top: 10px; }
.detail-list dd { margin: 2px 0 0; }

.table-wrap { overflow-x: auto; }
.checks-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.checks-table th, .checks-table td { padding: 8px; text-align: left; border-bottom: 1px solid var(--app-border); }
.status-pass { color: var(--app-success); }
.status-fail { color: var(--app-error); }
.status-opt { color: var(--app-muted); }

.bottom-nav { position: fixed; bottom: 0; left: 0; right: 0; display: flex; justify-content: space-around; background: var(--app-surface); border-top: 1px solid var(--app-border); padding: 8px 0; z-index: 20; }
.bottom-nav-item { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 6px 12px; background: none; border: none; color: var(--app-muted); text-decoration: none; font-size: 0.75rem; cursor: pointer; font-family: inherit; }
.bottom-nav-item:hover { color: var(--app-text); }
.bottom-nav-item.is-active { color: var(--app-primary); font-weight: 600; }
.bottom-nav-item-icon { font-size: 1.2rem; }

.citizen-tab-panel[hidden] { display: none !important; }

.app-modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: flex; align-items: center; justify-content: center; z-index: 100; padding: 16px; }
.app-modal-backdrop[hidden] { display: none !important; }
.app-modal { background: var(--app-surface); border-radius: var(--app-radius); max-width: 400px; width: 100%; max-height: 90vh; overflow: auto; position: relative; }
.app-modal-close { position: absolute; top: 8px; right: 8px; background: none; border: none; font-size: 1.5rem; color: var(--app-muted); cursor: pointer; line-height: 1; }
.app-modal-content { padding: 24px; }

@media (min-width: 600px) {
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
}