:root {
  --bg: #07131f;
  --panel: #0f2233;
  --panel-soft: #173047;
  --text: #f7fbff;
  --muted: #a9c1d3;
  --accent: #ff7a18;
  --accent-2: #12c4d6;
  --border: #29506b;
  --success: #42c48a;
  --warn: #ffc857;
  --danger: #ff6b6b;
  --radius: 14px;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 8% 8%, rgba(18, 196, 214, 0.18), transparent 40%),
    radial-gradient(circle at 90% 12%, rgba(255, 122, 24, 0.16), transparent 42%),
    linear-gradient(160deg, #04101b 0%, #07131f 42%, #0b1c2b 100%);
  min-height: 100%;
}

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

.shell {
  width: min(1120px, 92vw);
  margin: 0 auto;
  padding: 24px 0 64px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 30;
  padding: 14px 0;
  backdrop-filter: blur(8px);
}

.brand {
  font-weight: 700;
  letter-spacing: 0.03em;
}

.nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.nav a {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

.nav a.active,
.nav a:hover {
  color: var(--text);
  border-color: var(--accent-2);
  background: rgba(18, 196, 214, 0.12);
}

.hero {
  display: grid;
  gap: 24px;
  grid-template-columns: 1.2fr 1fr;
  padding: 44px 0 30px;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.15;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.8rem);
}

h2 {
  font-size: clamp(1.5rem, 2.2vw, 2.25rem);
}

p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.mono {
  font-family: "IBM Plex Mono", "SF Mono", "Menlo", monospace;
}

.grid {
  display: grid;
  gap: 18px;
}

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

.grid.cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(20, 40, 58, 0.92), rgba(11, 27, 40, 0.92));
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-2);
  font-weight: 600;
  letter-spacing: 0.03em;
  font-size: 0.9rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 0.76rem;
  font-weight: 600;
  background: rgba(18, 196, 214, 0.14);
  color: #c4f8fe;
  border: 1px solid rgba(18, 196, 214, 0.3);
}

.badge.paid {
  background: rgba(255, 122, 24, 0.16);
  border-color: rgba(255, 122, 24, 0.34);
  color: #ffe2cb;
}

.badge.member {
  background: rgba(255, 200, 87, 0.16);
  border-color: rgba(255, 200, 87, 0.34);
  color: #fff1c6;
}

.section {
  margin-top: 26px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 12px;
  padding: 12px 18px;
  cursor: pointer;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: transform 0.15s ease, filter 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.04);
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), #ff9f4d);
  color: #0d2335;
}

.btn.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn.ghost {
  background: rgba(18, 196, 214, 0.14);
  color: #dcfbff;
  border: 1px solid rgba(18, 196, 214, 0.32);
}

.cluster {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.split {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 18px;
}

.metric {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(10, 30, 44, 0.55);
}

.metric strong {
  font-size: 1.5rem;
}

label {
  display: block;
  margin-bottom: 8px;
  color: #d5e7f3;
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(7, 23, 35, 0.85);
  color: var(--text);
  padding: 10px 12px;
  font: inherit;
}

textarea {
  min-height: 110px;
  resize: vertical;
}

.field {
  margin-bottom: 14px;
}

.table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.table th,
.table td {
  padding: 11px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.table th {
  background: rgba(12, 36, 54, 0.94);
  color: #d8ebf8;
  font-size: 0.86rem;
}

.table tr:last-child td {
  border-bottom: none;
}

.stepper {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.step {
  flex: 1;
  min-width: 120px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  font-size: 0.86rem;
  color: var(--muted);
  background: rgba(11, 26, 39, 0.7);
}

.step.active {
  border-color: var(--accent);
  color: #ffe7d2;
}

.notice {
  border: 1px solid rgba(255, 200, 87, 0.36);
  background: rgba(255, 200, 87, 0.12);
  color: #fff0c2;
  padding: 10px 12px;
  border-radius: 10px;
}

.notice.error {
  border-color: rgba(255, 107, 107, 0.42);
  background: rgba(255, 107, 107, 0.14);
  color: #ffd1d1;
}

.timeline {
  display: grid;
  gap: 12px;
}

.timeline-item {
  border-left: 3px solid var(--accent-2);
  padding: 6px 0 6px 12px;
}

.footer {
  margin-top: 36px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  color: #9cb8cc;
  font-size: 0.9rem;
}

@media (max-width: 920px) {
  .hero,
  .split,
  .grid.cols-2,
  .grid.cols-3 {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }
}