/* Local AC Control Room — brand styles
   Colors derived from the Local AC logo:
     primary blue  #1B57A8
     cyan          #28B5E1
     alert red     #E63952
*/
:root {
  --c-primary: #1B57A8;
  --c-primary-dark: #134283;
  --c-primary-light: #2c6dc4;
  --c-cyan: #28B5E1;
  --c-cyan-light: #5cc6e8;
  --c-red: #E63952;
  --c-red-bg: #fdecec;
  --c-amber: #b87b00;
  --c-amber-bg: #fff5d6;
  --c-green: #1d7a3f;
  --c-green-bg: #e6f6ec;
  --c-text: #15202b;
  --c-text-dim: #5a6573;
  --c-border: #e2e6ec;
  --c-bg: #f5f7fa;
  --c-card-bg: #ffffff;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --radius: 8px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--c-bg);
  color: var(--c-text);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--c-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ============ Top nav ============ */
.topbar {
  background: var(--c-primary);
  color: #fff;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  height: 60px;
  box-shadow: var(--shadow-sm);
  position: sticky; top: 0; z-index: 100;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 17px; letter-spacing: 0.2px;
}
.brand-icon { width: 32px; height: 32px; display: flex; }
.brand-icon svg { width: 100%; height: 100%; }
.primary-nav { display: flex; gap: 4px; flex: 1; }
.primary-nav a {
  color: rgba(255,255,255,0.85);
  padding: 8px 14px;
  border-radius: 6px;
  font-weight: 500;
  font-size: 14px;
  transition: background 0.15s, color 0.15s;
}
.primary-nav a:hover { background: rgba(255,255,255,0.1); color: #fff; text-decoration: none; }
.primary-nav a.active { background: rgba(255,255,255,0.18); color: #fff; }
.user-menu {
  display: flex; align-items: center; gap: 10px; font-size: 13px;
}
.user-name { font-weight: 600; }
.user-role {
  background: rgba(255,255,255,0.15);
  padding: 2px 8px; border-radius: 12px; font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.logout-link { color: rgba(255,255,255,0.7); font-size: 13px; }
.logout-link:hover { color: #fff; }

.mobile-nav-toggle {
  display: none;
  background: none; border: none; color: #fff; font-size: 22px; cursor: pointer;
}

@media (max-width: 900px) {
  .topbar { gap: 12px; padding: 0 14px; }
  .primary-nav {
    display: none;
    position: absolute; top: 60px; left: 0; right: 0;
    background: var(--c-primary-dark);
    flex-direction: column; padding: 8px;
  }
  .primary-nav.open { display: flex; }
  .primary-nav a { padding: 12px; }
  .mobile-nav-toggle { display: block; }
  .user-menu .user-name, .user-menu .user-role { display: none; }
}

/* ============ Main ============ */
main.with-nav { padding: 24px; max-width: 1200px; margin: 0 auto; }
main.no-nav { padding: 0; }

.page-head {
  display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap;
  margin-bottom: 18px;
}
.page-head h1 { font-size: 22px; margin: 0; color: var(--c-text); }
.page-sub { color: var(--c-text-dim); font-size: 14px; }

/* ============ KPI grid ============ */
.kpi-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px; margin-bottom: 24px;
}
.kpi-card {
  background: var(--c-card-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
}
.kpi-card.kpi-alert { border-left: 4px solid var(--c-red); }
.kpi-label {
  font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px;
  color: var(--c-text-dim); margin-bottom: 6px; font-weight: 600;
}
.kpi-value { font-size: 32px; font-weight: 700; color: var(--c-primary); line-height: 1; }
.kpi-card.kpi-alert .kpi-value { color: var(--c-red); }
.kpi-sub { font-size: 12px; color: var(--c-text-dim); margin-top: 6px; }

/* ============ Panels ============ */
.panel {
  background: var(--c-card-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}
.panel h2 { font-size: 16px; margin: 0 0 14px; color: var(--c-text); }

.empty-good {
  background: var(--c-green-bg); color: var(--c-green);
  padding: 12px 14px; border-radius: 6px; font-weight: 500;
}
.muted { color: var(--c-text-dim); }

/* ============ Lists / tables ============ */
.alert-list { list-style: none; padding: 0; margin: 0; }
.alert-list li { padding: 8px 0; border-bottom: 1px solid var(--c-border); font-size: 14px; }
.alert-list li:last-child { border-bottom: 0; }

.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.data-table th {
  text-align: left; padding: 8px 10px;
  border-bottom: 2px solid var(--c-border);
  color: var(--c-text-dim); font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px;
}
.data-table td { padding: 10px; border-bottom: 1px solid var(--c-border); }
.data-table tbody tr:hover { background: #fafbfc; }

/* ============ Badges ============ */
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 4px;
  font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.4px;
}
.badge-admin { background: var(--c-primary); color: #fff; }
.badge-manager { background: var(--c-cyan); color: #fff; }
.badge-red { background: var(--c-red-bg); color: var(--c-red); }
.badge-amber { background: var(--c-amber-bg); color: var(--c-amber); }
.badge-green { background: var(--c-green-bg); color: var(--c-green); }

/* ============ Buttons ============ */
.btn {
  display: inline-block;
  padding: 9px 18px; border-radius: 6px; border: 0; cursor: pointer;
  font-size: 14px; font-weight: 600; transition: background 0.15s;
}
.btn-primary { background: var(--c-primary); color: #fff; }
.btn-primary:hover { background: var(--c-primary-dark); }
.btn-primary:disabled { background: var(--c-text-dim); cursor: not-allowed; opacity: 0.6; }

/* ============ Forms ============ */
.form-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px; align-items: end;
}
label {
  display: flex; flex-direction: column; gap: 6px;
  font-size: 13px; font-weight: 600; color: var(--c-text-dim);
}
input[type="text"], input[type="email"], input[type="password"], select, textarea {
  padding: 9px 12px; border: 1px solid var(--c-border); border-radius: 6px;
  font-size: 14px; font-family: inherit;
  background: #fff;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--c-cyan);
  box-shadow: 0 0 0 3px rgba(40, 181, 225, 0.15);
}

/* ============ Login ============ */
.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 24px; background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-dark) 100%);
}
.login-card {
  background: #fff; border-radius: 12px; padding: 36px;
  width: 100%; max-width: 400px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.2);
}
.login-brand { text-align: center; margin-bottom: 24px; }
.login-icon { width: 64px; height: 64px; margin: 0 auto 8px; }
.login-icon svg { width: 100%; height: 100%; }
.login-title { font-size: 22px; font-weight: 700; color: var(--c-primary); }
.login-sub { font-size: 13px; color: var(--c-text-dim); margin-top: 2px; }
.login-form { display: flex; flex-direction: column; gap: 14px; margin-top: 8px; }
.login-error {
  background: var(--c-red-bg); color: var(--c-red);
  padding: 10px 14px; border-radius: 6px; font-size: 14px; margin-bottom: 14px;
}

/* ============ Flash ============ */
.flash {
  padding: 12px 16px; border-radius: 6px; margin-bottom: 16px; font-size: 14px;
}
.flash-ok { background: var(--c-green-bg); color: var(--c-green); }
.flash-error { background: var(--c-red-bg); color: var(--c-red); }
.flash-info { background: #e7f1fb; color: var(--c-primary); }

.banner-warn {
  background: var(--c-amber-bg); color: var(--c-amber);
  padding: 12px 16px; border-radius: 6px; margin-bottom: 16px; font-size: 14px;
}
.banner-warn code { background: rgba(0,0,0,0.05); padding: 1px 6px; border-radius: 3px; font-size: 13px; }

/* ============ Chat ============ */
.chat-wrap {
  background: var(--c-card-bg); border: 1px solid var(--c-border);
  border-radius: var(--radius); display: flex; flex-direction: column;
  height: calc(100vh - 200px); min-height: 400px;
}
.chat-history {
  flex: 1; overflow-y: auto; padding: 16px;
}
.chat-empty { color: var(--c-text-dim); padding: 40px 20px; text-align: center; }
.chat-empty ul { display: inline-block; text-align: left; padding-left: 20px; }
.chat-empty li { margin: 4px 0; }
.msg { margin-bottom: 14px; }
.msg-role {
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px;
  font-weight: 600; color: var(--c-text-dim); margin-bottom: 4px;
}
.msg-body {
  padding: 10px 14px; border-radius: 8px;
  max-width: 85%; line-height: 1.5;
}
.msg-user { text-align: right; }
.msg-user .msg-body {
  background: var(--c-primary); color: #fff;
  display: inline-block; text-align: left;
}
.msg-assistant .msg-body {
  background: #f0f4f8; color: var(--c-text);
  display: inline-block;
}
.msg.pending .msg-body { opacity: 0.6; }
.chat-form {
  display: flex; gap: 8px; padding: 12px;
  border-top: 1px solid var(--c-border);
}
.chat-form textarea {
  flex: 1; resize: none; min-height: 40px; max-height: 120px;
}

/* ============ Mobile tweaks ============ */
@media (max-width: 600px) {
  main.with-nav { padding: 14px; }
  .kpi-grid { grid-template-columns: 1fr 1fr ; gap: 10px; }
  .kpi-card { padding: 14px; }
  .kpi-value { font-size: 26px; }
  .panel { padding: 14px; }
  .data-table { font-size: 13px; }
  .data-table td, .data-table th { padding: 6px 8px; }
}