:root {
  --font-body: "IBM Plex Sans", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-title: "Space Grotesk", "IBM Plex Sans", "Noto Sans SC", sans-serif;
  --bg-base: #f4f7fb;
  --bg-grid: #e8edf6;
  --card-bg: rgba(255, 255, 255, 0.86);
  --card-line: rgba(15, 23, 42, 0.08);
  --text-main: #0f172a;
  --text-sub: #475569;
  --text-soft: #64748b;
  --brand: #0d63f2;
  --brand-strong: #0b4cb8;
  --brand-soft: #dce8ff;
  --success: #0f9a76;
  --warning: #dd7f0d;
  --danger: #cf2f4f;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 10px;
  --shadow-card: 0 16px 40px rgba(15, 23, 42, 0.1);
  --shadow-hover: 0 20px 45px rgba(15, 23, 42, 0.14);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background:
    radial-gradient(circle at 15% 18%, rgba(13, 99, 242, 0.12), transparent 35%),
    radial-gradient(circle at 80% 12%, rgba(15, 154, 118, 0.08), transparent 30%),
    linear-gradient(160deg, #f9fbff 0%, var(--bg-base) 50%, #f2f6ff 100%);
  color: var(--text-main);
  font-family: var(--font-body);
  min-height: 100vh;
  line-height: 1.45;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: linear-gradient(var(--bg-grid) 1px, transparent 1px), linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.24;
  pointer-events: none;
  z-index: -1;
}

body.theme-admin {
  --brand: #da5a13;
  --brand-strong: #b93d00;
  --brand-soft: #ffe2cf;
}

body.theme-user {
  --brand: #125ee8;
  --brand-strong: #0a47ba;
  --brand-soft: #dce8ff;
}

body.theme-landing {
  --brand: #0f5de2;
  --brand-strong: #083f9c;
  --brand-soft: #d7e5ff;
}

a {
  color: inherit;
  text-decoration: none;
}

.hidden {
  display: none !important;
}

.page-shell {
  max-width: 1160px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

.panel {
  background: var(--card-bg);
  border: 1px solid var(--card-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(10px);
}

.topbar {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin-bottom: 18px;
  padding: 22px 24px;
}

.eyebrow {
  color: var(--brand-strong);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.page-title {
  font-family: var(--font-title);
  font-size: clamp(26px, 2.4vw, 36px);
  letter-spacing: -0.02em;
}

.muted {
  color: var(--text-sub);
  font-size: 14px;
}

.auth-shell {
  align-items: center;
  display: grid;
  gap: 26px;
  grid-template-columns: 1.1fr 1fr;
  margin: 0 auto;
  max-width: 1100px;
  min-height: 100vh;
  padding: 24px 20px;
}

.brand-block {
  padding: 12px;
}

.hero-title {
  font-family: var(--font-title);
  font-size: clamp(30px, 4vw, 52px);
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin-bottom: 12px;
}

.hero-copy {
  color: var(--text-sub);
  font-size: 16px;
  max-width: 560px;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.pill {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(15, 23, 42, 0.1);
  border-radius: 999px;
  color: var(--text-sub);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 14px;
}

.auth-panel {
  padding: 26px;
}

.tab-bar {
  background: rgba(15, 23, 42, 0.04);
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 12px;
  display: grid;
  gap: 6px;
  grid-template-columns: 1fr 1fr;
  margin-bottom: 20px;
  padding: 6px;
}

.tab {
  background: transparent;
  border: 0;
  border-radius: 8px;
  color: var(--text-soft);
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  padding: 11px 10px;
  transition: all 0.2s ease;
  width: 100%;
}

.tab.active {
  background: linear-gradient(120deg, var(--brand) 0%, var(--brand-strong) 100%);
  box-shadow: 0 8px 18px color-mix(in srgb, var(--brand) 32%, transparent);
  color: #fff;
}

.form-stack {
  display: grid;
  gap: 12px;
}

.form-heading {
  font-size: 22px;
  margin-bottom: 4px;
}

input,
select {
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.16);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 15px;
  padding: 12px 14px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  width: 100%;
}

input:focus,
select:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 20%, transparent);
  outline: none;
}

.btn {
  align-items: center;
  border: 0;
  border-radius: var(--radius-sm);
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  font-size: 14px;
  font-weight: 700;
  gap: 6px;
  justify-content: center;
  letter-spacing: 0.01em;
  padding: 12px 16px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.btn:hover:not(:disabled) {
  box-shadow: var(--shadow-hover);
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(120deg, var(--brand) 0%, var(--brand-strong) 100%);
}

.btn-success {
  background: linear-gradient(120deg, #0f9a76 0%, #0b7b5e 100%);
}

.btn-danger {
  background: linear-gradient(120deg, #cf2f4f 0%, #a5233d 100%);
}

.btn-warning {
  background: linear-gradient(120deg, #dd7f0d 0%, #bc6500 100%);
}

.btn-ghost {
  background: rgba(15, 23, 42, 0.08);
  color: var(--text-main);
}

.btn-row {
  display: flex;
  gap: 10px;
}

.btn-row .btn {
  flex: 1;
}

.send-code-row {
  align-items: stretch;
  display: flex;
  gap: 8px;
}

.send-code-row input {
  flex: 1;
}

.send-code-row .btn {
  flex: 0 0 auto;
  white-space: nowrap;
}

.stats-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  margin-bottom: 16px;
}

.stat-card {
  overflow: hidden;
  padding: 20px;
  position: relative;
}

.stat-card::after {
  background: linear-gradient(150deg, var(--brand-soft) 0%, transparent 70%);
  content: "";
  inset: 0;
  pointer-events: none;
  position: absolute;
  z-index: 0;
}

.stat-card > * {
  position: relative;
  z-index: 1;
}

.stat-label {
  color: var(--text-sub);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.stat-value {
  font-family: var(--font-title);
  font-size: clamp(28px, 2.8vw, 42px);
  letter-spacing: -0.02em;
}

.content-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr 1.4fr;
  margin-bottom: 16px;
}

.section-panel {
  padding: 22px;
}

.section-title {
  font-size: 20px;
  margin-bottom: 6px;
}

.section-copy {
  color: var(--text-soft);
  font-size: 14px;
  margin-bottom: 14px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  border-collapse: collapse;
  margin-top: 10px;
  width: 100%;
}

th {
  background: rgba(15, 23, 42, 0.04);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  color: var(--text-sub);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 11px 10px;
  text-align: left;
  text-transform: uppercase;
  white-space: nowrap;
}

td {
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
  color: var(--text-main);
  font-size: 13px;
  padding: 12px 10px;
  white-space: nowrap;
}

tr:hover td {
  background: rgba(15, 23, 42, 0.02);
}

code {
  background: rgba(15, 23, 42, 0.08);
  border-radius: 8px;
  color: #8a1f37;
  display: inline-block;
  font-family: "JetBrains Mono", "Cascadia Code", Consolas, monospace;
  font-size: 12px;
  max-width: 300px;
  overflow: hidden;
  padding: 6px 8px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.info-text {
  color: var(--text-soft);
  font-size: 13px;
  margin-top: 10px;
}

.signal-bar {
  align-items: center;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 16px;
  padding: 14px 18px;
}

.signal-item {
  align-items: center;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 10px;
  color: var(--text-sub);
  display: flex;
  font-size: 13px;
  gap: 8px;
  min-height: 40px;
  padding: 9px 12px;
}

.signal-value {
  color: var(--text-main);
  font-weight: 700;
}

.signal-dot {
  border-radius: 50%;
  display: inline-block;
  height: 8px;
  width: 8px;
}

.signal-live {
  background: var(--success);
  box-shadow: 0 0 0 4px rgba(15, 154, 118, 0.14);
}

.signal-warn {
  background: var(--warning);
  box-shadow: 0 0 0 4px rgba(221, 127, 13, 0.14);
}

.signal-note {
  background: var(--brand);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand) 16%, transparent);
}

.status-badge {
  border-radius: 999px;
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 5px 9px;
  text-transform: uppercase;
}

.status-ok {
  background: rgba(15, 154, 118, 0.14);
  color: #0b765c;
}

.status-off {
  background: rgba(207, 47, 79, 0.14);
  color: #a5233d;
}

.status-warn {
  background: rgba(221, 127, 13, 0.16);
  color: #9d5a08;
}

.table-empty {
  color: var(--text-soft);
  font-size: 13px;
  padding: 28px 10px;
  text-align: center;
}

.mono {
  font-family: "JetBrains Mono", "Cascadia Code", Consolas, monospace;
}

.inline-actions {
  display: flex;
  gap: 10px;
}

.action-row {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.credit-row {
  align-items: center;
  display: flex;
  gap: 8px;
}

.credit-input {
  margin: 0;
  max-width: 140px;
  min-width: 110px;
  padding: 8px 10px;
}

.btn-small {
  background: linear-gradient(120deg, #cf2f4f 0%, #a5233d 100%);
  border: 0;
  border-radius: 8px;
  color: #fff;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  padding: 8px 10px;
}

.btn-mini {
  border: 0;
  border-radius: 8px;
  color: #fff;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  padding: 8px 9px;
}

.btn-mini-primary {
  background: linear-gradient(120deg, var(--brand) 0%, var(--brand-strong) 100%);
}

.btn-mini-ghost {
  background: rgba(15, 23, 42, 0.14);
  color: var(--text-main);
}

.logout-btn {
  min-width: 84px;
}

.integration-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.integration-item {
  background: rgba(255, 255, 255, 0.64);
  border: 1px solid rgba(15, 23, 42, 0.1);
  border-radius: 12px;
  padding: 13px;
}

.integration-label {
  color: var(--text-soft);
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.integration-value {
  color: var(--text-main);
  font-size: 13px;
  margin-bottom: 10px;
}

.code-block {
  background: #0f172a;
  border-radius: 10px;
  color: #d5deed;
  font-family: "JetBrains Mono", "Cascadia Code", Consolas, monospace;
  font-size: 12px;
  line-height: 1.5;
  overflow-x: auto;
  padding: 12px;
}

.toast-wrap {
  bottom: 18px;
  display: grid;
  gap: 8px;
  position: fixed;
  right: 18px;
  width: min(360px, calc(100% - 26px));
  z-index: 9999;
}

.toast {
  border-radius: 10px;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.18);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 10px 12px;
}

.toast-info {
  background: linear-gradient(120deg, #3b82f6 0%, #1d4ed8 100%);
}

.toast-success {
  background: linear-gradient(120deg, #0f9a76 0%, #0b7b5e 100%);
}

.toast-error {
  background: linear-gradient(120deg, #cf2f4f 0%, #a5233d 100%);
}

.landing-shell {
  margin: 0 auto;
  max-width: 1100px;
  padding: 40px 20px 64px;
}

.landing-hero {
  margin-bottom: 14px;
  padding: 28px;
}

.landing-copy {
  color: var(--text-sub);
  font-size: 16px;
  margin-top: 10px;
  max-width: 780px;
}

.kpi-row {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 18px;
}

.kpi {
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 12px;
  padding: 14px;
}

.kpi-label {
  color: var(--text-soft);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.kpi-value {
  font-family: var(--font-title);
  font-size: 26px;
  letter-spacing: -0.02em;
}

.route-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.route-card {
  display: block;
  padding: 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.route-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.route-title {
  font-family: var(--font-title);
  font-size: 24px;
  margin-bottom: 8px;
}

.route-desc {
  color: var(--text-sub);
  font-size: 14px;
}

.route-foot {
  color: var(--brand-strong);
  font-size: 13px;
  font-weight: 700;
  margin-top: 14px;
}

.reveal {
  animation: rise-in 0.55s ease both;
}

.delay-1 {
  animation-delay: 0.08s;
}

.delay-2 {
  animation-delay: 0.16s;
}

.delay-3 {
  animation-delay: 0.24s;
}

.delay-4 {
  animation-delay: 0.3s;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .auth-shell {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-bottom: 40px;
    padding-top: 36px;
  }

  .page-shell {
    padding-top: 22px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .content-grid {
    grid-template-columns: 1fr;
  }

  .kpi-row,
  .route-grid,
  .integration-grid,
  .signal-bar {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .panel,
  .auth-panel,
  .landing-hero {
    padding: 18px;
  }

  .btn-row {
    flex-direction: column;
  }

  .inline-actions {
    width: 100%;
  }

  .inline-actions .btn {
    flex: 1;
  }

  .send-code-row {
    flex-direction: column;
  }

  code {
    max-width: 210px;
  }
}