/* Coal Manage demo — fog-grey, drawer nav, mobile+PC */
:root {
  --primary: #607D8B;
  --primary-rgb: 96, 125, 139;
  --accent: #90A4AE;
  --surface: #F5F7F8;
  --card: #ffffff;
  --text: #1A1A2E;
  --muted: #5C6370;
  --border: rgba(26, 26, 46, 0.08);
  --danger: #e53935;
  --warn: #ef6c00;
  --ok: #2e7d32;
  --r-sm: 12px;
  --r-md: 20px;
  --r-lg: 28px;
  --shadow: 0 2px 10px rgba(26, 26, 46, 0.06);
  --shadow-lg: 0 12px 32px rgba(26, 26, 46, 0.12);
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --drawer-w: min(50vw, 320px);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  background: var(--surface);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}
button, input, select { font: inherit; color: inherit; }
[hidden] { display: none !important; }
.hidden { display: none !important; }

/* —— Login —— */
.login-body {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: calc(24px + var(--safe-t)) 16px calc(24px + var(--safe-b));
  background: var(--surface);
}
.login-card {
  width: min(400px, 100%);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.login-logo {
  text-align: center;
  display: grid;
  gap: 6px;
  justify-items: center;
  margin-bottom: 4px;
}
.login-logo h1 { margin: 0; font-size: 1.35rem; letter-spacing: -0.02em; }
.login-logo p { margin: 0; color: var(--muted); font-size: 0.9rem; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field span { font-size: 0.85rem; font-weight: 600; color: var(--muted); }
.field.tight { margin: 0 0 10px; }
.login-card input,
.login-card .lang-select,
.drawer .lang-select {
  border: 1.5px solid var(--border);
  border-radius: 14px;
  padding: 12px 14px;
  background: var(--surface);
  outline: none;
  width: 100%;
}
.login-card input:focus,
.lang-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.15);
}

/* —— Avatar —— */
.avatar {
  width: 40px; height: 40px;
  border-radius: 14px;
  background: var(--primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.05rem;
  box-shadow: 0 4px 14px rgba(var(--primary-rgb), 0.28);
  flex-shrink: 0;
}
.avatar.lg { width: 52px; height: 52px; border-radius: 18px; font-size: 1.25rem; }
.avatar-btn {
  appearance: none; border: 0; background: transparent;
  padding: 0; cursor: pointer; border-radius: 14px;
  -webkit-tap-highlight-color: transparent;
}
.avatar-btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

/* —— App shell —— */
.app {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding-bottom: var(--safe-b);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: calc(12px + var(--safe-t)) 16px 12px;
  background: rgba(245, 247, 248, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.topbar-center { min-width: 0; }
.topbar-center h1 {
  margin: 0;
  font-size: clamp(1.15rem, 4vw, 1.35rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.page-sub {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.8rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.demo-banner {
  margin: 12px 16px 0;
  padding: 10px 14px;
  border-radius: var(--r-md);
  background: rgba(var(--primary-rgb), 0.08);
  color: var(--muted);
  border-left: 4px solid var(--primary);
  font-size: 0.82rem;
}

.main {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 16px 28px;
  flex: 1;
}
.content { display: flex; flex-direction: column; gap: 14px; }

/* —— Drawer —— */
.drawer-backdrop {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(26, 26, 46, 0.35);
  border: 0;
  padding: 0;
  cursor: pointer;
  animation: fadeIn 0.2s var(--ease);
}
.drawer {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 70;
  width: var(--drawer-w);
  min-width: 240px;
  max-width: 360px;
  background: var(--card);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  padding: calc(16px + var(--safe-t)) 14px calc(16px + var(--safe-b));
  transform: translateX(-105%);
  transition: transform 0.28s var(--ease);
}
.drawer.open {
  transform: translateX(0);
}
.drawer-top {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 6px 18px;
  border-bottom: 1px solid var(--border);
}
.drawer-account {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.drawer-account strong {
  font-size: 1.05rem;
  overflow: hidden;
  text-overflow: ellipsis;
}
.demo-pill {
  display: inline-flex;
  align-self: flex-start;
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(var(--primary-rgb), 0.12);
  color: var(--primary);
  font-size: 0.72rem;
  font-weight: 700;
}
.drawer-nav {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 0;
  -webkit-overflow-scrolling: touch;
}
.nav-item {
  appearance: none; border: 0; background: transparent;
  text-align: left; width: 100%;
  padding: 13px 14px;
  border-radius: 16px;
  color: var(--muted);
  cursor: pointer;
  font-weight: 600;
  transition: background 0.15s var(--ease), color 0.15s var(--ease);
  -webkit-tap-highlight-color: transparent;
}
.nav-item:hover { background: rgba(var(--primary-rgb), 0.08); color: var(--text); }
.nav-item.active {
  background: rgba(var(--primary-rgb), 0.14);
  color: var(--primary);
}
.drawer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
.drawer-settings-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 6px 10px;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* —— Buttons —— */
.btn {
  appearance: none; border: 0; border-radius: 999px;
  padding: 10px 16px; cursor: pointer; font-weight: 700;
  transition: transform 0.15s var(--ease), filter 0.15s var(--ease), background 0.15s var(--ease);
  -webkit-tap-highlight-color: transparent;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn-sm { padding: 8px 14px; font-size: 0.88rem; }
.btn-primary {
  background: var(--primary); color: #fff;
  box-shadow: 0 4px 14px rgba(var(--primary-rgb), 0.32);
}
.btn-primary:hover { filter: brightness(1.05); }
.btn-ghost {
  background: transparent; color: var(--primary);
  border: 1.5px solid rgba(var(--primary-rgb), 0.28);
}
.btn-ghost:hover { background: rgba(var(--primary-rgb), 0.08); }
.btn.full { width: 100%; justify-content: center; }

/* —— Cards / content —— */
.loading-card, .empty-card, .error-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 28px 20px;
  text-align: center;
  color: var(--muted);
  box-shadow: var(--shadow);
}
.error-card { color: var(--danger); border-color: rgba(229, 57, 53, 0.25); }

.kpi-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 520px) {
  .kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 960px) {
  .kpi-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.kpi {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 18px;
  box-shadow: var(--shadow);
  min-height: 108px;
}
.kpi .label { color: var(--muted); font-size: 0.84rem; font-weight: 600; }
.kpi .value {
  margin-top: 8px;
  font-size: clamp(1.4rem, 5vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  word-break: break-word;
}
.kpi .hint { margin-top: 6px; color: var(--accent); font-size: 0.78rem; }
.kpi.warn .value { color: var(--warn); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 18px 16px;
  box-shadow: var(--shadow);
}
@media (min-width: 900px) {
  .card { padding: 20px; border-radius: 36px; }
}
.card h2 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  font-weight: 700;
  display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap;
}
.card h3 {
  margin: 18px 0 10px;
  font-size: 0.95rem;
  color: var(--primary);
  font-weight: 700;
}
.card-sub { color: var(--muted); font-size: 0.86rem; margin: -4px 0 14px; }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
@media (min-width: 900px) {
  .grid-2 { grid-template-columns: 1.25fr 0.75fr; }
}

.alert-list { display: flex; flex-direction: column; gap: 10px; }
.alert {
  border-radius: var(--r-md);
  padding: 12px 14px;
  border: 1px solid var(--border);
  background: var(--surface);
}
.alert.red { border-left: 4px solid var(--danger); background: #fff5f5; }
.alert.yellow { border-left: 4px solid var(--warn); background: #fff8f0; }
.alert .title { font-weight: 700; }
.alert .detail { color: var(--muted); font-size: 0.88rem; margin-top: 4px; white-space: pre-wrap; word-break: break-word; }

.table-wrap {
  overflow: auto;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  -webkit-overflow-scrolling: touch;
}
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
th {
  background: rgba(var(--primary-rgb), 0.08);
  color: var(--muted);
  font-weight: 700;
  font-size: 0.78rem;
  position: sticky; top: 0;
}
tr:last-child td { border-bottom: 0; }
tr.bad td { background: #fff5f5; }

.data-cards { display: none; flex-direction: column; gap: 10px; }
.data-card {
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 14px;
  background: var(--surface);
}
.data-card.bad { background: #fff5f5; border-color: rgba(229, 57, 53, 0.28); }
.data-card .row {
  display: flex; justify-content: space-between; gap: 12px;
  padding: 4px 0; font-size: 0.9rem;
}
.data-card .row .k { color: var(--muted); flex-shrink: 0; }
.data-card .row .v { font-weight: 600; text-align: right; word-break: break-word; }

@media (max-width: 719px) {
  .table-wrap { display: none; }
  .data-cards { display: flex; }
}
@media (min-width: 720px) {
  .data-cards { display: none; }
  .table-wrap { display: block; }
}

.badge {
  display: inline-flex; align-items: center;
  padding: 2px 8px; border-radius: 999px;
  font-size: 0.72rem; font-weight: 700;
}
.badge.red { background: #ffebee; color: var(--danger); }
.badge.yellow { background: #fff3e0; color: var(--warn); }
.badge.green { background: #e8f5e9; color: var(--ok); }
.badge.grey { background: rgba(var(--primary-rgb), 0.12); color: var(--muted); }

.msg-list { display: flex; flex-direction: column; gap: 10px; }
.msg {
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 14px;
  background: var(--surface);
}
.msg-meta {
  display: flex; flex-wrap: wrap; gap: 6px 10px;
  color: var(--muted); font-size: 0.78rem; margin-bottom: 8px;
}
.msg-body { white-space: pre-wrap; word-break: break-word; font-size: 0.94rem; }
.msg.failed { border-color: rgba(229, 57, 53, 0.35); background: #fff8f8; }

.chart-box { position: relative; height: 220px; }
@media (min-width: 900px) { .chart-box { height: 280px; } }

.report-body {
  white-space: pre-wrap;
  background: var(--surface);
  border-radius: var(--r-md);
  padding: 16px;
  border: 1px solid var(--border);
  line-height: 1.65;
  font-size: 0.94rem;
  word-break: break-word;
}

.map-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
@media (min-width: 520px) {
  .map-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 900px) {
  .map-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
.map-item {
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 12px 14px;
  background: var(--surface);
}
.map-item .from {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--primary); font-weight: 700; font-size: 0.88rem;
  word-break: break-all;
}
.map-item .to { margin-top: 4px; font-weight: 700; }
.map-item .note { margin-top: 4px; color: var(--muted); font-size: 0.8rem; }

.banner.error {
  background: #ffebee; color: var(--danger);
  border-radius: var(--r-sm);
  padding: 10px 12px; font-size: 0.9rem;
}
.hint { margin: 0; color: var(--muted); font-size: 0.78rem; text-align: center; }

/* RTL */
html[dir="rtl"] .nav-item { text-align: right; }
html[dir="rtl"] .drawer {
  left: auto; right: 0;
  transform: translateX(105%);
}
html[dir="rtl"] .drawer.open { transform: translateX(0); }
html[dir="rtl"] .alert.red,
html[dir="rtl"] .alert.yellow { border-left: 0; border-right: 4px solid; }
html[dir="rtl"] .alert.red { border-right-color: var(--danger); }
html[dir="rtl"] .alert.yellow { border-right-color: var(--warn); }
html[dir="rtl"] .demo-banner { border-left: 0; border-right: 4px solid var(--primary); }

@media (min-width: 900px) {
  :root { --drawer-w: min(50vw, 360px); }
  .main { padding: 20px 24px 40px; }
}