:root {
  /* Dark Technical (default) */
  --bg: #090c10;
  --bg-grid: #0d1117;
  --panel: #10151d;
  --panel-2: #161d27;
  --border: #212b38;
  --border-bright: #2d3b4d;
  --text: #e6edf3;
  --muted: #7c8b9c;
  --green: #2ea043;
  --green-glow: #2ea04355;
  --red: #f85149;
  --red-glow: #f8514966;
  --amber: #d29922;
  --amber-glow: #d2992255;
  --accent: #3ea6ff;
  --accent-2: #6b5bff;
  --accent-glow: #3ea6ff3d;
  --on-accent: #04101c;
  --pattern-color: #1a2330;
  --owes-bg: #2a1414;
  --flash-success-bg: #14351f;
  --flash-success-text: #7ee2a8;
  --flash-error-bg: #3a1616;
  --flash-error-text: #ffb4ac;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Consolas, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* Dark Cyber: purple/magenta neon accent */
html[data-theme="dark-cyber"] {
  --bg: #0a0612;
  --bg-grid: #0f0a1a;
  --panel: #160f24;
  --panel-2: #1d1430;
  --border: #2c2044;
  --border-bright: #3d2e5c;
  --text: #f0e9ff;
  --muted: #9c8fc4;
  --green: #2ecc71;
  --green-glow: #2ecc7155;
  --red: #ff4d6d;
  --red-glow: #ff4d6d66;
  --amber: #ffb703;
  --amber-glow: #ffb70355;
  --accent: #c026d3;
  --accent-2: #ec4899;
  --accent-glow: #c026d33d;
  --on-accent: #1a0620;
  --pattern-color: #2c2044;
  --owes-bg: #331226;
  --flash-success-bg: #12321f;
  --flash-success-text: #7ee2a8;
  --flash-error-bg: #3a1225;
  --flash-error-text: #ffb4d4;
}

/* Light: clean, high-contrast light mode */
html[data-theme="light"] {
  --bg: #f4f6f9;
  --bg-grid: #eef1f5;
  --panel: #ffffff;
  --panel-2: #f1f4f8;
  --border: #dde3ea;
  --border-bright: #c7d0da;
  --text: #1b232c;
  --muted: #5c6b7a;
  --green: #1a7f37;
  --green-glow: #1a7f3733;
  --red: #cf222e;
  --red-glow: #cf222e33;
  --amber: #9a6700;
  --amber-glow: #9a670033;
  --accent: #0969da;
  --accent-2: #6639ba;
  --accent-glow: #0969da22;
  --on-accent: #ffffff;
  --pattern-color: #d8dee6;
  --owes-bg: #fdeceb;
  --flash-success-bg: #dcfce7;
  --flash-success-text: #166534;
  --flash-error-bg: #fee2e2;
  --flash-error-text: #991b1b;
}

/* Light Soft: warm, low-contrast paper-like light mode */
html[data-theme="light-soft"] {
  --bg: #faf7f2;
  --bg-grid: #f4efe6;
  --panel: #fffdf9;
  --panel-2: #f7f1e7;
  --border: #e8dfd0;
  --border-bright: #d8cbb3;
  --text: #2b2620;
  --muted: #7a705f;
  --green: #2f7a4f;
  --green-glow: #2f7a4f33;
  --red: #b8402f;
  --red-glow: #b8402f33;
  --amber: #a3730a;
  --amber-glow: #a3730a33;
  --accent: #0f766e;
  --accent-2: #b45309;
  --accent-glow: #0f766e22;
  --on-accent: #ffffff;
  --pattern-color: #e5ddd0;
  --owes-bg: #fbe9e4;
  --flash-success-bg: #e3f1e6;
  --flash-success-text: #2f5a3d;
  --flash-error-bg: #f6e4e0;
  --flash-error-text: #7a3226;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  transition: background-color .2s, color .2s;
}

/* Background pattern variants (independent of theme colors) */
html[data-bg="grid"] body {
  background-image:
    radial-gradient(circle at 1px 1px, var(--pattern-color) 1px, transparent 0),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-grid) 100%);
  background-size: 26px 26px, auto;
  background-attachment: fixed;
}
html[data-bg="circuit"] body {
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 39px, var(--pattern-color) 40px),
    repeating-linear-gradient(90deg, transparent, transparent 39px, var(--pattern-color) 40px),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-grid) 100%);
  background-size: 40px 40px, 40px 40px, auto;
  background-attachment: fixed;
}
html[data-bg="plain"] body {
  background-image: linear-gradient(180deg, var(--bg) 0%, var(--bg-grid) 100%);
  background-attachment: fixed;
}

::selection { background: var(--accent-glow); color: var(--text); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

code, .mono { font-family: var(--mono); }

/* ---- Topbar ---- */
.topbar {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 12px 22px;
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 0 var(--accent-glow), 0 4px 24px -8px #00000055;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 20;
}
.brand {
  font-weight: 700; font-size: 17px; white-space: nowrap; letter-spacing: .01em;
  font-family: var(--mono);
  display: flex; align-items: center; gap: 9px;
}
.brand-logo { width: 26px; height: 26px; border-radius: 7px; filter: drop-shadow(0 0 6px var(--accent-glow)); }
.brand.center .brand-logo { width: 40px; height: 40px; }
.live-dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--green);
  box-shadow: 0 0 0 0 var(--green-glow);
  animation: live-pulse 2s ease-out infinite;
  margin-left: 2px;
}
@keyframes live-pulse {
  0% { box-shadow: 0 0 0 0 var(--green-glow); }
  70% { box-shadow: 0 0 0 7px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}
.role-badge {
  font-family: var(--mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: .05em;
  color: var(--accent); background: var(--accent-glow); border: 1px solid var(--accent);
  padding: 3px 9px; border-radius: 20px; margin-right: 4px; white-space: nowrap;
}
.tabs { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
.tabs a, .topbar-right a {
  color: var(--muted);
  text-decoration: none;
  padding: 7px 13px;
  border-radius: 7px;
  font-size: 13.5px;
  font-weight: 500;
  transition: background .15s, color .15s;
}
.tabs a:hover, .topbar-right a:hover { background: var(--panel-2); color: var(--text); }
.tabs a.active { background: var(--accent-glow); color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent-glow); }
.topbar-right { display: flex; align-items: center; gap: 4px; }
.topbar-right a.active { color: var(--accent); }
.topbar-right .logout { color: var(--red); }
.topbar-right .logout:hover { background: var(--red-glow); }
#muteBtn {
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  border-radius: 7px; padding: 7px 11px; cursor: pointer; font-size: 14px; transition: border-color .15s;
}
#muteBtn:hover { border-color: var(--accent); }

/* ---- Alarm banner ---- */
.alarm-banner {
  background: linear-gradient(90deg, var(--red), #7a1f1a, var(--red));
  background-size: 200% 100%;
  color: #fff; text-align: center; padding: 9px;
  font-weight: 600; font-family: var(--mono); letter-spacing: .03em;
  animation: pulse-bg 1.4s infinite, shimmer 3s linear infinite;
}
.alarm-banner.hidden { display: none; }
@keyframes pulse-bg { 0%,100% { opacity: 1; } 50% { opacity: 0.8; } }
@keyframes shimmer { 0% { background-position: 0% 0; } 100% { background-position: 200% 0; } }

/* ---- Content ---- */
.content { padding: 26px; max-width: 1440px; margin: 0 auto; }
.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; flex-wrap: wrap; gap: 10px; }
.page-header h1 { margin: 0; font-size: 21px; font-weight: 700; letter-spacing: -.01em; }

.btn {
  background: var(--accent);
  color: var(--on-accent); border: none; padding: 9px 17px; font-weight: 600;
  border-radius: 7px; text-decoration: none; font-size: 13.5px; cursor: pointer; display: inline-block;
  box-shadow: 0 4px 14px -4px var(--accent-glow);
  transition: transform .12s, filter .12s;
}
.btn:hover { transform: translateY(-1px); filter: brightness(1.08); }
.btn:active { transform: translateY(0); }
.btn.secondary { background: var(--panel-2); border: 1px solid var(--border-bright); color: var(--text); box-shadow: none; }
.btn.secondary:hover { border-color: var(--accent); box-shadow: none; filter: none; }
.btn.small { padding: 5px 10px; font-size: 12px; }

/* ---- Summary bar ---- */
.summary-bar { display: flex; gap: 10px; margin-bottom: 20px; flex-wrap: wrap; }
.pill {
  padding: 7px 15px; border-radius: 20px; font-size: 12.5px; font-weight: 600;
  background: var(--panel-2); border: 1px solid var(--border); font-family: var(--mono);
}
.pill span { font-size: 13px; }
.pill.up span { color: var(--green); }
.pill.down span { color: var(--red); }
.pill.unknown span { color: var(--muted); }

/* ---- Device grid ---- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(235px, 1fr)); gap: 14px; }
.card {
  background: linear-gradient(160deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border); border-radius: 10px;
  padding: 14px; position: relative; overflow: hidden;
  transition: box-shadow .3s, border-color .3s, transform .15s;
}
.card:hover { transform: translateY(-2px); }
.card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--border-bright);
}
.card.status-up::before { background: var(--green); box-shadow: 0 0 8px var(--green-glow); }
.card.status-down::before { background: var(--red); box-shadow: 0 0 8px var(--red-glow); }
.card.status-maintenance::before { background: var(--amber); box-shadow: 0 0 8px var(--amber-glow); }
.card.status-up { border-color: var(--green-glow); }
.card.status-down { border-color: var(--red); box-shadow: 0 0 16px -2px var(--red-glow); animation: blink 1.1s infinite; }
.card.status-unknown { border-color: var(--border); opacity: 0.7; }
.card.status-maintenance { border-color: var(--amber); box-shadow: none; animation: none; opacity: 0.9; }
@keyframes blink { 0%,100% { box-shadow: 0 0 8px -2px var(--red-glow); } 50% { box-shadow: 0 0 22px -2px var(--red-glow); } }

.card-top { display: flex; align-items: center; gap: 7px; margin-bottom: 8px; }
.type-icon { font-size: 14px; line-height: 1; }
.type-label { font-family: var(--mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); margin-bottom: 2px; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--muted); flex-shrink: 0; }
.status-up .dot { background: var(--green); box-shadow: 0 0 6px var(--green-glow); }
.status-down .dot { background: var(--red); box-shadow: 0 0 6px var(--red-glow); }
.dot-up { background: var(--green); } .dot-down { background: var(--red); } .dot-unknown { background: var(--muted); }
.dot-maint { background: var(--amber); }
.dot { display: inline-block; }
.dev-name { flex: 1; font-size: 14.5px; font-weight: 600; }
.proto-badge {
  font-size: 9.5px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted);
  background: var(--bg); border: 1px solid var(--border); padding: 2px 7px; border-radius: 4px; font-family: var(--mono);
}
.card-body { font-size: 12.5px; color: var(--muted); line-height: 1.7; }
.card-body .ip { color: var(--text); font-family: var(--mono); font-size: 13px; }
.card-actions { margin-top: 10px; display: flex; gap: 12px; flex-wrap: wrap; }
.card-actions a { color: var(--accent); font-size: 12.5px; text-decoration: none; }

.empty-state { color: var(--muted); }

/* ---- Tables ---- */
.data-table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.data-table th, .data-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); font-size: 13.5px; }
.data-table th { color: var(--muted); font-weight: 600; background: var(--panel-2); font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .04em; }
.data-table tbody tr:hover { background: var(--panel-2); }
.table-scroll-5 { max-height: 252px; overflow-y: auto; border: 1px solid var(--border); border-radius: 8px; }
.table-scroll-5 .data-table { border: none; border-radius: 0; }
.table-scroll-5 .data-table thead th { position: sticky; top: 0; z-index: 1; }
.row-actions a { color: var(--accent); margin-right: 10px; text-decoration: none; font-size: 13px; }
.link-danger { background: none; border: none; color: var(--red); cursor: pointer; font-size: 13px; padding: 0; }
.link-edit { background: none; border: none; color: var(--accent); cursor: pointer; font-size: 13px; padding: 0; margin-right: 10px; }
.hidden { display: none; }
.maint-row { opacity: 0.75; }
.tag-filter-bar { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.tag-filter-bar .chip { text-decoration: none; padding: 4px 10px; }
.active-chip { background: var(--accent) !important; color: var(--on-accent) !important; border-color: var(--accent) !important; font-weight: 600; }
.uplink-cell { font-family: var(--mono); font-size: 12px; color: var(--accent-2); }

/* ---- Forms ---- */
.form-card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 20px; }
.form-card label { display: block; font-size: 12px; color: var(--muted); margin: 10px 0 4px; font-family: var(--mono); text-transform: uppercase; letter-spacing: .03em; }
.form-card input, .form-card select, .form-card textarea {
  width: 100%; padding: 9px 10px; background: var(--bg); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text); font-size: 14px; transition: border-color .15s;
}
.form-card input:focus, .form-card select:focus, .form-card textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 4px 18px; }
.full-width { grid-column: 1 / -1; }
.checkbox-row { display: flex; align-items: center; margin-top: 14px; }
.checkbox-row label { display: flex; align-items: center; gap: 8px; color: var(--text); font-size: 14px; margin: 0; font-family: var(--sans); text-transform: none; }
.checkbox-row input { width: auto; }
.snmp-fields { display: contents; }
.form-actions { margin-top: 18px; display: flex; gap: 10px; }
.hint { color: var(--muted); font-weight: 400; font-size: 12.5px; }
.reveal-row { margin-top: 14px; display: flex; align-items: center; gap: 10px; }
#revealedPw { font-family: var(--mono); color: var(--amber); }
.inline-form { display: flex; gap: 10px; margin-bottom: 18px; align-items: center; flex-wrap: wrap; }
.inline-form input, .inline-form select { width: auto; flex: 1; min-width: 140px; }

.topology-block { margin-top: 6px; }
.topology-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 10px; margin-top: 4px; }
.topo-line { font-family: var(--mono); font-size: 11.5px; color: var(--accent-2); margin-top: 4px; }
.topo-downstream { color: var(--muted); }

/* ---- Theme swatches (Settings) ---- */
.theme-swatches { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin-top: 6px; }
.theme-swatch {
  display: flex; align-items: center; gap: 8px; padding: 9px 10px; border-radius: 8px;
  border: 1px solid var(--border); cursor: pointer; font-family: var(--sans); font-size: 12.5px;
  color: var(--text); text-transform: none; background: var(--bg);
}
.theme-swatch.selected { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-glow); }
.theme-swatch input { display: none; }
.swatch-preview { width: 20px; height: 20px; border-radius: 5px; flex-shrink: 0; border: 1px solid #ffffff22; }
.swatch-dark .swatch-preview { background: linear-gradient(135deg, #10151d, #3ea6ff); }
.swatch-dark-cyber .swatch-preview { background: linear-gradient(135deg, #160f24, #c026d3); }
.swatch-light .swatch-preview { background: linear-gradient(135deg, #ffffff, #0969da); }
.swatch-light-soft .swatch-preview { background: linear-gradient(135deg, #fffdf9, #0f766e); }

/* ---- Billing ---- */
.section-title { margin: 26px 0 10px; font-size: 14px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; font-family: var(--mono); }
.net-pos { color: var(--green); font-weight: 600; }
.net-neg { color: var(--red); font-weight: 600; }
.owes-row { background: var(--owes-bg); }
.badge-owes { background: var(--red); color: #fff; padding: 2px 8px; border-radius: 10px; font-size: 12px; font-family: var(--mono); }
.billing-forms { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; margin: 10px 0 26px; }
.billing-forms .form-card h3 { margin-top: 0; }

.month-tab-bar { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; }
.month-tab {
  font-family: var(--mono); font-size: 12.5px; color: var(--muted); text-decoration: none;
  background: var(--panel-2); border: 1px solid var(--border); padding: 6px 13px; border-radius: 20px;
  transition: border-color .15s, color .15s;
}
.month-tab:hover { color: var(--text); border-color: var(--border-bright); }
.month-tab.active { background: var(--accent-glow); color: var(--accent); border-color: var(--accent); font-weight: 600; }

/* ---- Monthly summary cards ---- */
.month-summary-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; margin-bottom: 26px; }
.month-summary-card {
  background: linear-gradient(160deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border); border-radius: 10px; padding: 13px 15px;
  text-decoration: none; color: var(--text); display: block;
  transition: border-color .2s, transform .15s;
}
.month-summary-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.month-summary-card.current-month { border-color: var(--accent); box-shadow: 0 0 12px -3px var(--accent-glow); }
.ms-top { display: flex; align-items: center; justify-content: space-between; gap: 6px; font-family: var(--mono); font-size: 13.5px; margin-bottom: 8px; }
.ms-now { font-size: 9.5px; text-transform: uppercase; letter-spacing: .04em; color: var(--accent); background: var(--accent-glow); border: 1px solid var(--accent); padding: 1px 7px; border-radius: 10px; }
.ms-row { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); font-family: var(--mono); padding: 2px 0; }
.ms-row.ms-net { border-top: 1px solid var(--border); margin-top: 4px; padding-top: 6px; font-weight: 600; }
.ms-row span:first-child { color: var(--muted); }

/* ---- Maintenance / tags / SNMP rate ---- */
.maint-badge { color: var(--amber); font-weight: 600; margin: 2px 0; }
.tag-chips { margin-top: 6px; display: flex; flex-wrap: wrap; gap: 4px; }
.chip { background: var(--panel-2); border: 1px solid var(--border); color: var(--muted); font-size: 11px; padding: 1px 7px; border-radius: 10px; font-family: var(--mono); }
.snmp-rate { font-family: var(--mono); font-size: 12px; color: var(--accent); }
.back-link { color: var(--muted); font-size: 12.5px; text-decoration: none; }
.back-link:hover { color: var(--accent); }

/* ---- Customer/device button-style links ---- */
.customer-chip-link {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  padding: 5px 12px; border-radius: 20px; text-decoration: none; font-size: 12.5px; font-weight: 600;
  transition: border-color .15s, background .15s, color .15s, transform .1s;
}
.customer-chip-link:hover { border-color: var(--accent); background: var(--accent-glow); color: var(--accent); transform: translateY(-1px); }
.customer-chip-link.small-chip { padding: 3px 10px; font-size: 12px; font-weight: 500; }
.dev-name-link { color: inherit; text-decoration: none; }
.dev-name-link:hover .dev-name { color: var(--accent); text-decoration: underline; }
.dev-name-link:hover { color: var(--accent); text-decoration: underline; }

/* ---- Status badges (customer status) ---- */
.status-badge {
  font-family: var(--mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: .04em;
  padding: 3px 10px; border-radius: 20px; font-weight: 600;
}
.status-badge.status-active { background: var(--green-glow); color: var(--green); border: 1px solid var(--green); }
.status-badge.status-suspended { background: var(--amber-glow); color: var(--amber); border: 1px solid var(--amber); }
.status-badge.status-inactive { background: var(--panel-2); color: var(--muted); border: 1px solid var(--border); }
.cc-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 8px; }
.cc-top h3 { margin: 0; }

.customer-info-bar {
  display: flex; flex-wrap: wrap; gap: 14px; align-items: center;
  background: var(--panel); border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 16px; margin-bottom: 18px; font-size: 13px; color: var(--muted);
}

/* ---- Network tools output ---- */
.tool-output {
  background: var(--bg); border: 1px solid var(--border); border-radius: 6px;
  padding: 12px; font-family: var(--mono); font-size: 12.5px; color: var(--text);
  overflow-x: auto; white-space: pre-wrap; word-break: break-word;
}

/* ---- Main dashboard: active customer summary panel ---- */
.customer-summary-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; margin-bottom: 24px; }
.customer-summary-card {
  background: linear-gradient(160deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border); border-radius: 10px; padding: 13px 15px;
  text-decoration: none; color: var(--text); display: block;
  transition: border-color .2s, transform .15s, box-shadow .2s;
}
.customer-summary-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.customer-summary-card.flagged { border-color: var(--red); box-shadow: 0 0 14px -3px var(--red-glow); animation: blink 1.4s infinite; }
.cs-top { display: flex; align-items: center; justify-content: space-between; gap: 6px; font-size: 14.5px; margin-bottom: 6px; }
.cs-flag { color: var(--red); font-size: 15px; }
.cs-counts { display: flex; gap: 10px; font-size: 12px; font-family: var(--mono); color: var(--muted); flex-wrap: wrap; }
.cs-online { color: var(--green); }
.cs-offline { color: var(--red); }
.cs-contact { margin-top: 8px; font-size: 11.5px; color: var(--muted); }

/* ---- Customers grid ---- */
.customer-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; margin-bottom: 28px; }
.customer-card {
  background: linear-gradient(160deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border); border-radius: 10px; padding: 16px;
  text-decoration: none; color: var(--text); display: block;
  transition: border-color .2s, transform .15s;
}
.customer-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.customer-card h3 { margin: 0 0 8px; font-size: 16px; }
.customer-card .cc-stats { display: flex; gap: 10px; font-size: 12px; color: var(--muted); font-family: var(--mono); }
.customer-card .cc-stats .cc-up { color: var(--green); }
.customer-card .cc-stats .cc-down { color: var(--red); }
.customer-card .cc-fee { margin-top: 8px; font-size: 12px; color: var(--muted); font-family: var(--mono); }

/* ---- Modal (Add Customer, etc.) ---- */
.modal-overlay {
  position: fixed; inset: 0; background: #00000099; backdrop-filter: blur(3px);
  display: flex; align-items: center; justify-content: center; z-index: 100; padding: 20px;
}
.modal-overlay.hidden { display: none; }
.modal-box {
  background: linear-gradient(160deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border-bright); border-radius: 12px; padding: 22px;
  width: 100%; max-width: 560px; max-height: 88vh; overflow-y: auto;
  box-shadow: 0 20px 60px -20px #000000aa, 0 0 40px -10px var(--accent-glow);
}
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.modal-header h3 { margin: 0; }
.modal-close {
  background: var(--panel-2); border: 1px solid var(--border); color: var(--muted);
  border-radius: 6px; width: 28px; height: 28px; cursor: pointer; font-size: 14px;
}
.modal-close:hover { color: var(--red); border-color: var(--red); }

/* ---- Lead pipeline stage badges ---- */
.stage-badge {
  font-family: var(--mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: .04em;
  padding: 3px 10px; border-radius: 20px; font-weight: 600;
}
.stage-badge.stage-new { background: var(--accent-glow); color: var(--accent); border: 1px solid var(--accent); }
.stage-badge.stage-contacted { background: var(--amber-glow); color: var(--amber); border: 1px solid var(--amber); }
.stage-badge.stage-negotiating { background: color-mix(in srgb, var(--accent-2) 20%, transparent); color: var(--accent-2); border: 1px solid var(--accent-2); }
.stage-badge.stage-won { background: var(--green-glow); color: var(--green); border: 1px solid var(--green); }
.stage-badge.stage-lost { background: var(--panel-2); color: var(--muted); border: 1px solid var(--border); }

/* ---- MikroTik config export ---- */
.config-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 10px; flex-wrap: wrap; }
.config-output { max-height: 60vh; overflow-y: auto; }

/* ---- Invoice (printable — intentionally theme-independent, always light for print) ---- */
.invoice-box { max-width: 640px; margin: 30px auto; background: #fff; color: #111; padding: 36px; border-radius: 8px; }
.invoice-box h1 { font-size: 20px; margin: 0 0 2px; }
.invoice-box table { width: 100%; border-collapse: collapse; margin-top: 20px; }
.invoice-box td, .invoice-box th { padding: 8px; border-bottom: 1px solid #ddd; text-align: left; }
.invoice-print-btn { margin-top: 20px; }
@media print { .invoice-print-btn, .no-print { display: none !important; } body { background: #fff; } }

/* ---- Flash messages ---- */
.flashes { margin-bottom: 16px; }
.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 8px; font-size: 14px; }
.flash.success { background: var(--flash-success-bg); color: var(--flash-success-text); border: 1px solid var(--green); }
.flash.error { background: var(--flash-error-bg); color: var(--flash-error-text); border: 1px solid var(--red); }

/* ---- Login page ---- */
.login-body {
  display: flex; align-items: center; justify-content: center; height: 100vh;
}
.login-box {
  background: linear-gradient(160deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border); border-radius: 12px; padding: 34px; width: 320px;
  box-shadow: 0 20px 60px -20px #00000055, 0 0 40px -10px var(--accent-glow);
}
.brand.center { text-align: center; font-size: 22px; margin-bottom: 4px; justify-content: center; font-family: var(--mono); flex-direction: column; }
.subtitle { color: var(--muted); text-align: center; margin-top: 0; font-size: 12.5px; font-family: var(--mono); }
.login-box label { display: block; font-size: 11.5px; color: var(--muted); margin: 14px 0 4px; font-family: var(--mono); text-transform: uppercase; letter-spacing: .03em; }
.login-box input {
  width: 100%; padding: 10px; background: var(--bg); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text); font-size: 14px;
}
.login-box input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.login-box button {
  width: 100%; margin-top: 20px; padding: 11px; background: var(--accent);
  color: var(--on-accent); border: none; border-radius: 7px; font-size: 14px; font-weight: 700; cursor: pointer;
  box-shadow: 0 4px 14px -4px var(--accent-glow);
}
.login-box button:hover { filter: brightness(1.08); }