/* Stack design system tokens — include verbatim in every app */
:root {
  --navy:        #1a1a2e;
  --navy-dark:   #0f0f20;
  --gold:        #c9a84c;
  --gold-light:  #e8c96d;
  --surface:     rgba(255,255,255,0.07);
  --surface-2:   rgba(255,255,255,0.08);
  --text:        rgba(255,255,255,0.88);
  --text-muted:  rgba(255,255,255,0.48);
  --body-bg:     #f4f5f7;
  --card-bg:     #ffffff;
  --card-border: #e4e8ee;
  --text-dark:   #1e293b;
  --text-mid:    #64748b;
  --shadow-sm:   0 1px 3px rgba(0,0,0,0.07), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:   0 4px 12px rgba(0,0,0,0.08);
  --danger:      #dc2626;
  --radius:      10px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
body { background: var(--body-bg); color: var(--text-dark); font-family: var(--font); }

/* App theme + semantic tokens */
:root {
  --app-primary:       #0e7490;
  --app-primary-light: #0891b2;

  --sev-warning:  #d97706;
  --sev-critical: #dc2626;
  --sev-ok:       #16a34a;

  --danger-bg:  #fef2f2;
  --warn-bg:    #fffbeb;
  --ok-bg:      #f0fdf4;

  --sidebar-w: 240px;
  --topbar-h:  56px;
}

*, *::before, *::after { box-sizing: border-box; }
html, body, #root { height: 100%; margin: 0; font-size: 14px; }

::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--card-border); border-radius: 2px; }

/* ── App shell ─────────────────────────────────────────────── */
.app-shell { display: flex; height: 100vh; overflow: hidden; }

.sidebar {
  width: var(--sidebar-w);
  background: var(--navy);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow-y: auto;
}
.sidebar-logo {
  padding: 20px 16px 12px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .05em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-logo svg { opacity: .8; }
.sidebar-nav { flex: 1; padding: 8px 0; }
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13.5px;
  transition: background .15s, color .15s;
}
.sidebar-nav a:hover { background: var(--surface); color: var(--text); }
.sidebar-nav a.active { background: rgba(201,168,76,.1); color: var(--gold); }
.sidebar-user {
  padding: 12px 16px;
  border-top: 1px solid var(--surface-2);
  color: var(--text-muted);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.top-bar {
  display: none;
  height: var(--topbar-h);
  background: var(--navy);
  color: var(--text);
  align-items: center;
  padding: 0 12px;
  gap: 10px;
  flex-shrink: 0;
}
.top-bar-title { flex: 1; font-size: 15px; font-weight: 600; color: var(--gold); }

.page-content { flex: 1; overflow-y: auto; display: flex; flex-direction: column; }

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 200;
    transform: translateX(calc(-1 * var(--sidebar-w)));
    transition: transform 0.25s ease;
  }
  .app-shell.menu-open .sidebar { transform: translateX(0); }
  .top-bar { display: flex; }
  .app-shell { flex-direction: column; }
  .field-row { flex-direction: column; }
}

.menu-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 199;
}

.top-bar-burger {
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 4px;
  flex-shrink: 0;
}

/* ── Page chrome ───────────────────────────────────────────── */
.page { padding: 20px; max-width: 1100px; width: 100%; margin: 0 auto; }
.page-header { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.page-header h1 { font-size: 18px; margin: 0; flex: 1; }

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--text-dark);
  border-radius: var(--radius);
  padding: 7px 14px;
  font-size: 13px;
  cursor: pointer;
  font-family: var(--font);
  transition: background .12s, border-color .12s;
}
.btn:hover { border-color: var(--text-mid); }
.btn:disabled { opacity: .5; cursor: default; }
.btn-primary { background: var(--gold); border-color: var(--gold); color: var(--navy); font-weight: 600; }
.btn-primary:hover { background: var(--gold-light); border-color: var(--gold-light); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-sm { padding: 4px 10px; font-size: 12px; border-radius: 8px; }

/* ── Forms ─────────────────────────────────────────────────── */
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 12px; font-weight: 600; color: var(--text-mid); margin-bottom: 4px; }
.field input[type="text"], .field input[type="email"], .field input[type="date"],
.field input[type="number"], .field select, .field textarea {
  width: 100%;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 13.5px;
  font-family: var(--font);
  color: var(--text-dark);
  background: var(--card-bg);
}
.field textarea { min-height: 72px; resize: vertical; }
.field-row { display: flex; gap: 12px; }
.field-row > .field { flex: 1; }
.field-check { display: flex; align-items: center; gap: 8px; font-size: 13.5px; cursor: pointer; }
.field-check input { width: 16px; height: 16px; accent-color: var(--gold); }
.field-hint { font-size: 11.5px; color: var(--text-mid); margin-top: 3px; }

/* ── Cards ─────────────────────────────────────────────────── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 14px 16px;
  margin-bottom: 10px;
}

/* ── Asset grid / cards ────────────────────────────────────── */
.asset-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.asset-card {
  border-left: 4px solid var(--sev-ok);
}
.asset-card.sev-warning  { border-left-color: var(--sev-warning); }
.asset-card.sev-critical { border-left-color: var(--sev-critical); }
.asset-card-title { font-weight: 600; font-size: 14px; margin-bottom: 4px; display: flex; align-items: center; gap: 6px; justify-content: space-between; }
.asset-card-meta { font-size: 12px; color: var(--text-mid); margin-bottom: 8px; }
.asset-field-list { display: flex; flex-direction: column; gap: 4px; }
.asset-field-row { display: flex; justify-content: space-between; gap: 8px; font-size: 12.5px; }
.asset-field-key { color: var(--text-mid); }
.asset-field-value { font-weight: 600; color: var(--text-dark); }

/* ── Water softener diagram ────────────────────────────────── */
.softener-diagram-empty {
  font-size: 12px;
  color: var(--text-mid);
  background: var(--body-bg);
  border: 1px dashed var(--card-border);
  border-radius: 8px;
  padding: 10px;
  margin-bottom: 10px;
}
.softener-diagram { margin-bottom: 12px; }
.softener-regen-banner {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--gold);
  background: rgba(201,168,76,.12);
  border-radius: 6px;
  padding: 4px 8px;
  margin-bottom: 8px;
  width: fit-content;
}
.softener-diagram-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.softener-flow {
  display: flex;
  align-items: center;
  color: var(--card-border);
  flex-shrink: 0;
}
.softener-flow svg { margin-left: -6px; }
.softener-flow-active svg { color: var(--app-primary); animation: softener-flow-pulse 1.1s ease-in-out infinite; }
.softener-flow-active svg:nth-child(2) { animation-delay: .15s; }
.softener-flow-active svg:nth-child(3) { animation-delay: .3s; }
@keyframes softener-flow-pulse {
  0%, 100% { opacity: .25; }
  50% { opacity: 1; }
}

.softener-tank {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 76px;
  flex-shrink: 0;
}
.softener-tank-standby { opacity: .5; }
.softener-tank-active .softener-tank-shell { border-color: var(--gold); box-shadow: 0 0 0 1px var(--gold); }
.softener-badge {
  position: absolute;
  top: -9px;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 3px;
  background: var(--gold);
  color: var(--navy);
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .02em;
  border-radius: 20px;
  padding: 2px 7px;
  white-space: nowrap;
}
.softener-badge-regen { background: var(--app-primary); color: #fff; }
.softener-tank-shell {
  position: relative;
  width: 56px;
  height: 90px;
  border: 2px solid var(--card-border);
  border-radius: 10px 10px 6px 6px;
  background: var(--body-bg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.softener-tank-fill {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  transition: height .5s ease;
}
.softener-fill-ok       { background: var(--sev-ok); }
.softener-fill-warning  { background: var(--sev-warning); }
.softener-fill-critical { background: var(--sev-critical); }
.softener-fill-unknown  { background: var(--card-border); height: 0 !important; }
.softener-tank-pct {
  position: relative;
  z-index: 1;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-dark);
  text-shadow: 0 1px 2px rgba(255,255,255,.6);
}
.softener-tank-label { font-size: 11px; font-weight: 600; color: var(--text-dark); margin-top: 6px; }
.softener-tank-value { font-size: 10px; color: var(--text-mid); }

/* ── Badges ────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border-radius: 20px;
  padding: 2px 9px;
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
}
.badge-sev-warning  { background: var(--sev-warning); }
.badge-sev-critical { background: var(--sev-critical); }
.badge-sev-ok       { background: var(--sev-ok); }

.badge-status-open          { background: var(--sev-critical); }
.badge-status-acknowledged  { background: var(--sev-warning); }
.badge-status-resolved      { background: var(--sev-ok); }

.badge-outline {
  background: transparent;
  border: 1px solid var(--card-border);
  color: var(--text-mid);
  font-weight: 500;
}

/* ── Modal ─────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,15,32,.55);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 24px 12px;
  z-index: 100;
  overflow-y: auto;
}
.modal {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  width: 100%;
  max-width: 680px;
  padding: 20px;
  margin: auto 0;
}
.modal-header { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 14px; }
.modal-header h2 { font-size: 16px; margin: 0; flex: 1; }
.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-mid);
  padding: 2px;
  display: flex;
}
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 16px; flex-wrap: wrap; }

/* ── Photos ────────────────────────────────────────────────── */
.photo-grid { display: flex; gap: 8px; flex-wrap: wrap; margin: 8px 0; }
.photo-thumb {
  width: 84px;
  height: 84px;
  border-radius: 8px;
  object-fit: cover;
  border: 1px solid var(--card-border);
  cursor: pointer;
}
.photo-thumb-uploading {
  display: flex; align-items: center; justify-content: center;
  background: var(--card-border); color: var(--text-mid);
}
@keyframes spin { to { transform: rotate(360deg); } }
.spin { animation: spin .75s linear infinite; }
.photo-thumb-wrap { position: relative; }
.photo-del {
  position: absolute;
  top: -6px;
  right: -6px;
  background: var(--danger);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.lightbox-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,.92);
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
}
.lightbox-img { max-width: 100%; max-height: 100%; object-fit: contain; border-radius: 4px; }
.lightbox-close {
  position: absolute; top: 16px; right: 16px;
  background: rgba(255,255,255,.15); border: none; border-radius: 50%;
  width: 38px; height: 38px; display: flex; align-items: center; justify-content: center;
  cursor: pointer; color: #fff; transition: background .12s;
}
.lightbox-close:hover { background: rgba(255,255,255,.28); }

/* ── Tables ────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; background: var(--card-bg); border: 1px solid var(--card-border); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
table.data { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data th {
  text-align: left;
  padding: 9px 12px;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--text-mid);
  border-bottom: 1px solid var(--card-border);
  white-space: nowrap;
}
table.data td { padding: 9px 12px; border-bottom: 1px solid var(--card-border); vertical-align: top; }
table.data tr:last-child td { border-bottom: none; }
table.data tr.clickable { cursor: pointer; }

/* ── Misc ──────────────────────────────────────────────────── */
.empty-state { text-align: center; color: var(--text-mid); padding: 40px 16px; font-size: 13.5px; }
.error-banner {
  background: var(--danger-bg);
  border: 1px solid var(--danger);
  color: var(--danger);
  border-radius: var(--radius);
  padding: 10px 14px;
  margin-bottom: 12px;
  font-size: 13px;
}
.ok-banner {
  background: var(--ok-bg);
  border: 1px solid var(--sev-ok);
  color: var(--sev-ok);
  border-radius: var(--radius);
  padding: 10px 14px;
  margin-bottom: 12px;
  font-size: 13px;
}
.warn-banner {
  background: var(--warn-bg);
  border: 1px solid var(--sev-warning);
  color: var(--sev-warning);
  border-radius: var(--radius);
  padding: 10px 14px;
  margin-bottom: 12px;
  font-size: 13px;
}
.section-title { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--text-mid); margin: 18px 0 8px; }
.muted { color: var(--text-mid); }

/* Sidebar scrollbar */
.sidebar::-webkit-scrollbar, .sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track, .sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb, .sidebar-nav::-webkit-scrollbar-thumb { background: rgba(201,168,76,0.35); border-radius: 2px; }
.sidebar::-webkit-scrollbar-thumb:hover, .sidebar-nav::-webkit-scrollbar-thumb:hover { background: rgba(201,168,76,0.65); }
.sidebar, .sidebar-nav { scrollbar-width: thin; scrollbar-color: rgba(201,168,76,0.35) transparent; }