:root {
  --bg: #0b0714;
  --bg-elevated: #140d23;
  --panel: rgba(30, 19, 53, 0.88);
  --panel-strong: #1b1030;
  --border: rgba(201, 174, 255, 0.16);
  --border-strong: rgba(208, 183, 255, 0.28);
  --text: #f4edff;
  --muted: #b9aacd;
  --accent: #9f5cff;
  --accent-strong: #c38fff;
  --accent-soft: rgba(159, 92, 255, 0.16);
  --success: #62d3b7;
  --danger: #ff7d96;
  --shadow: 0 24px 70px rgba(3, 0, 14, 0.48);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(159, 92, 255, 0.22), transparent 28%),
    radial-gradient(circle at 85% 15%, rgba(104, 73, 255, 0.24), transparent 24%),
    linear-gradient(180deg, #090611 0%, #120a20 52%, #090611 100%);
}

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

.container {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.page-shell {
  padding-bottom: 48px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  background: rgba(9, 6, 17, 0.75);
  border-bottom: 1px solid rgba(214, 194, 255, 0.08);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 82px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--accent), #5a34ff);
  color: white;
  font-weight: 700;
  letter-spacing: 0.08em;
  box-shadow: 0 14px 30px rgba(121, 60, 232, 0.35);
}

.brand-copy {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.15rem;
  font-weight: 700;
}

.brand-subtitle {
  color: var(--muted);
  font-size: 0.82rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.inline-form {
  margin: 0;
}

.nav a {
  color: var(--muted);
}

.nav a:hover {
  color: var(--text);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 14px;
  min-height: 46px;
  padding: 0 18px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: white;
  background: linear-gradient(135deg, var(--accent), #673bff);
  box-shadow: 0 18px 32px rgba(110, 58, 220, 0.35);
}

.button-secondary {
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.03);
}

.button-block {
  width: 100%;
}

.flash-stack {
  padding-top: 20px;
}

.flash {
  margin-bottom: 12px;
  border-radius: 14px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  background: var(--panel);
}

.flash-success {
  border-color: rgba(98, 211, 183, 0.35);
}

.flash-error {
  border-color: rgba(255, 125, 150, 0.35);
}

.flash-info {
  border-color: rgba(159, 92, 255, 0.35);
}

.hero {
  padding: 76px 0 48px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 28px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-strong);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 700;
}

.hero h1,
.auth-card h1,
.dashboard-top h1 {
  margin: 0;
  line-height: 1.05;
  font-size: clamp(2.4rem, 5vw, 4.7rem);
}

.lead,
.lead-tight,
.auth-copy,
.supporting-copy,
.feature-list,
.info-card p,
.station-row p {
  color: var(--muted);
}

.lead {
  max-width: 760px;
  font-size: 1.08rem;
  line-height: 1.7;
  margin: 18px 0 0;
}

.lead-tight {
  margin: 12px 0 0;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.hero-panel,
.info-card,
.stack-card,
.auth-card,
.dashboard-card,
.mini-stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: 28px;
  position: relative;
  overflow: hidden;
}

.hero-panel::after {
  content: "";
  position: absolute;
  inset: auto -40px -60px auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(193, 138, 255, 0.35), transparent 70%);
}

.signal-cluster {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
}

.signal-cluster span {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--accent-strong), var(--accent));
  animation: pulse 1.8s infinite;
}

.signal-cluster span:nth-child(2) {
  animation-delay: 0.2s;
}

.signal-cluster span:nth-child(3) {
  animation-delay: 0.4s;
}

.panel-stat + .panel-stat,
.stack-row + .stack-row,
.mini-stat + .mini-stat {
  margin-top: 14px;
}

.panel-stat,
.stack-row {
  padding: 16px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.panel-stat:first-of-type,
.stack-row:first-child {
  border-top: 0;
  padding-top: 0;
}

.panel-stat strong,
.stack-row strong,
.info-card h2,
.mini-stat strong,
.card-header h2 {
  display: block;
}

.highlights,
.architecture,
.dashboard-main {
  padding-top: 18px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.info-card {
  padding: 24px;
}

.info-card h2 {
  margin: 0 0 10px;
  font-size: 1.8rem;
}

.split-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  gap: 20px;
  align-items: start;
}

.feature-list {
  margin: 18px 0 0;
  padding-left: 20px;
  line-height: 1.7;
}

.stack-card {
  padding: 24px;
}

.stack-row span,
.mini-stat span,
.card-header span {
  color: var(--muted);
  font-size: 0.88rem;
}

.auth-main {
  padding-top: 42px;
}

.auth-wrap {
  display: grid;
  place-items: center;
}

.auth-card {
  width: min(100%, 540px);
  padding: 32px;
}

.auth-card label {
  display: block;
  margin: 18px 0 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

.auth-card input {
  width: 100%;
  min-height: 48px;
  border-radius: 14px;
  border: 1px solid rgba(214, 194, 255, 0.12);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  padding: 0 14px;
  font-size: 1rem;
}

.auth-card input:focus {
  outline: 2px solid rgba(159, 92, 255, 0.45);
  outline-offset: 2px;
}

.auth-foot {
  margin: 18px 0 0;
  color: var(--muted);
}

.verification-panel {
  margin-top: 22px;
  padding: 20px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
}

.auth-foot a {
  color: var(--accent-strong);
}

.dashboard-shell {
  padding-top: 26px;
}

.dashboard-top {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  align-items: end;
}

.stat-strip {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.mini-stat {
  min-width: 130px;
  padding: 18px;
}

.mini-stat strong {
  margin-top: 6px;
  font-size: 2rem;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.dashboard-card {
  padding: 24px;
}

.dashboard-card label {
  display: block;
  margin: 18px 0 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

.dashboard-card input {
  width: 100%;
  min-height: 48px;
  border-radius: 14px;
  border: 1px solid rgba(214, 194, 255, 0.12);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  padding: 0 14px;
  font-size: 1rem;
}

.dashboard-card input:focus {
  outline: 2px solid rgba(159, 92, 255, 0.45);
  outline-offset: 2px;
}

.wide-card {
  grid-column: 1 / -1;
}

.card-header {
  margin-bottom: 16px;
}

.card-header h2 {
  margin: 0 0 6px;
}

.station-list {
  display: grid;
  gap: 14px;
}

.station-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(214, 194, 255, 0.08);
}

.station-row strong {
  display: block;
  margin-bottom: 4px;
}

.station-row p,
.demo-credentials {
  margin: 0;
}

.empty-state {
  color: var(--muted);
  margin: 0;
}

.danger-card {
  border-color: rgba(255, 125, 150, 0.28);
  background:
    linear-gradient(180deg, rgba(255, 125, 150, 0.08), rgba(30, 19, 53, 0.88)),
    var(--panel);
}

.danger-form {
  margin-top: 18px;
}

.danger-button {
  width: 100%;
  margin-top: 18px;
  color: white;
  border-color: rgba(255, 125, 150, 0.35);
  background: linear-gradient(135deg, #a31836, #d64667);
  box-shadow: 0 18px 32px rgba(140, 19, 52, 0.28);
}

@keyframes pulse {
  0%,
  100% {
    transform: translateY(0);
    opacity: 0.7;
  }
  50% {
    transform: translateY(-5px);
    opacity: 1;
  }
}

@media (max-width: 900px) {
  .hero-grid,
  .split-panel,
  .dashboard-grid,
  .card-grid,
  .dashboard-top {
    grid-template-columns: 1fr;
    display: grid;
  }

  .dashboard-top {
    align-items: start;
  }

  .station-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 28px, 1160px);
  }

  .header-row {
    padding: 14px 0;
    align-items: start;
  }

  .hero {
    padding-top: 44px;
  }

  .hero-actions,
  .nav,
  .stat-strip {
    width: 100%;
  }

  .button {
    width: 100%;
  }

  .auth-card,
  .dashboard-card,
  .hero-panel {
    border-radius: 20px;
  }
}