:root {
  --bg0: #0c1118;
  --bg1: #121a24;
  --bg2: #1a2433;
  --line: rgba(245, 158, 11, 0.18);
  --text: #f3efe6;
  --muted: #9aa8b8;
  --accent: #f59e0b;
  --accent-dim: #b45309;
  --ok: #34d399;
  --bad: #f87171;
  --warn: #fbbf24;
  --radius: 14px;
  --font: "DM Sans", system-ui, sans-serif;
  --display: "Instrument Serif", Georgia, serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg0);
}

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

.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(245, 158, 11, 0.16), transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 10%, rgba(56, 189, 248, 0.08), transparent 50%),
    linear-gradient(180deg, #0c1118 0%, #0a1017 100%);
}

.site-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.5rem;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
  background: rgba(12, 17, 24, 0.72);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: inherit;
  text-decoration: none;
}

.brand img { border-radius: 8px; }
.brand strong { display: block; font-size: 1.15rem; letter-spacing: -0.02em; }
.brand span { color: var(--muted); font-size: 0.85rem; }

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.85rem;
}

.nav a {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.92rem;
  text-decoration: none;
  padding: 0.35rem 0.2rem;
}

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

.nav-cta {
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  color: #111 !important;
  padding: 0.45rem 0.9rem !important;
  border-radius: 999px;
}

.flash {
  width: min(760px, 100% - 2rem);
  margin: 1rem auto 0;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg1);
}

.flash-ok { border-color: rgba(52, 211, 153, 0.35); color: var(--ok); }
.flash-bad { border-color: rgba(248, 113, 113, 0.35); color: var(--bad); }
.flash-warn { border-color: rgba(251, 191, 36, 0.35); color: var(--warn); }

.page {
  width: min(980px, 100% - 2rem);
  margin: 2rem auto 4rem;
}

.page.narrow { width: min(760px, 100% - 2rem); }

.hero {
  padding: 2.5rem 0 3rem;
  max-width: 36rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.display {
  margin: 0 0 0.75rem;
  font-family: var(--display);
  font-size: clamp(3rem, 8vw, 4.5rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 0.95;
}

.hero-lead { font-size: 1.1rem; }

.lead {
  margin: 0 0 1.5rem;
  color: var(--muted);
  line-height: 1.55;
}

h1 {
  margin: 0 0 0.35rem;
  font-size: 1.85rem;
  letter-spacing: -0.03em;
}

h2 { margin: 0 0 0.75rem; font-size: 1.25rem; }
h3 { margin: 0 0 0.4rem; font-size: 1.05rem; }

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.services { margin-top: 1rem; }

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.85rem;
}

.service {
  display: block;
  padding: 1.15rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(26, 36, 51, 0.9), rgba(18, 26, 36, 0.85));
  color: inherit;
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s;
}

.service:hover {
  border-color: rgba(245, 158, 11, 0.45);
  transform: translateY(-2px);
  text-decoration: none;
}

.service p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.plans {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  align-items: stretch;
}

.plan {
  position: relative;
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(26, 36, 51, 0.95), rgba(18, 26, 36, 0.9));
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.plan.is-featured {
  border-color: rgba(245, 158, 11, 0.55);
  box-shadow: 0 0 0 1px rgba(245, 158, 11, 0.12);
}

.plan-badge {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  font-size: 0.72rem;
  font-weight: 700;
  color: #111;
  background: var(--accent);
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
}

.plan-desc { margin: 0; color: var(--muted); font-size: 0.92rem; }
.plan-price {
  margin: 0.25rem 0 0;
  font-family: var(--display);
  font-size: 2.2rem;
  letter-spacing: -0.02em;
}

.plan-features {
  margin: 0.25rem 0 0.75rem;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.9rem;
  flex: 1;
}

.plan-features li { margin: 0.25rem 0; }

.card-form {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  padding: 1.25rem;
  background: linear-gradient(160deg, rgba(26, 36, 51, 0.95), rgba(18, 26, 36, 0.9));
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.card-form.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
}

.card-form.row {
  display: flex;
  flex-direction: row;
  align-items: end;
  gap: 0.75rem;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
}

label.full { grid-column: 1 / -1; }
label.grow { flex: 1; }
label.check {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

input, select, textarea {
  font: inherit;
  color: var(--text);
  background: var(--bg0);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  padding: 0.7rem 0.85rem;
  outline: none;
}

input:focus, select:focus, textarea:focus { border-color: var(--accent); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: inherit;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.1);
  background: var(--bg2);
  color: var(--text);
  padding: 0.7rem 1.1rem;
  border-radius: 10px;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover { filter: brightness(1.08); text-decoration: none; }
.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  color: #111;
  border-color: transparent;
}
.btn.danger {
  background: rgba(248, 113, 113, 0.15);
  border-color: rgba(248, 113, 113, 0.35);
  color: var(--bad);
}
.btn.ghost { background: transparent; }
.btn.full { width: 100%; grid-column: 1 / -1; }

.block { margin-top: 2rem; }

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg1);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

th, td {
  text-align: left;
  padding: 0.7rem 0.85rem;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

th { color: var(--muted); font-weight: 500; }
td.key-cell, .key {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  word-break: break-all;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge.active { background: rgba(52,211,153,0.15); color: var(--ok); }
.badge.pending, .badge.payment_pending { background: rgba(251,191,36,0.15); color: var(--warn); }
.badge.revoked, .badge.inactive, .badge.expired, .badge.cancelled {
  background: rgba(248,113,113,0.15); color: var(--bad);
}

.result {
  margin-top: 1rem;
  padding: 1rem 1.15rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg1);
  line-height: 1.5;
}
.result.ok { border-color: rgba(52, 211, 153, 0.35); }
.result.bad { border-color: rgba(248, 113, 113, 0.35); }

.meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 1rem;
  margin-top: 0.75rem;
  font-size: 0.9rem;
}
.meta dt { color: var(--muted); }
.meta dd { margin: 0; }

.steps {
  margin: 0 0 1rem;
  padding-left: 1.2rem;
  color: var(--muted);
  line-height: 1.7;
}

.steps code {
  font-family: var(--mono);
  font-size: 0.85em;
  color: var(--accent);
}

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.hint { color: var(--muted); font-weight: 400; }

.site-footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  padding: 2rem 1rem 3rem;
  border-top: 1px solid rgba(255,255,255,0.04);
}

.site-footer p { margin: 0.25rem 0; }

/* Admin tabs (lógica preservada) */
.admin-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.tabs {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.tab {
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
  font-weight: 500;
}

.tab:hover { color: var(--text); background: var(--bg2); }
.tab.is-active {
  color: #111;
  background: var(--accent);
  border-color: var(--accent);
}

.panel { display: none; animation: fade 0.25s ease; }
.panel.is-active { display: block; }

@keyframes fade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.85rem;
}

.divider {
  height: 1px;
  background: var(--line);
  margin: 2rem 0 1.25rem;
}

.row.between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.85rem;
}

@media (max-width: 720px) {
  .card-form.grid { grid-template-columns: 1fr; }
  label.check { margin-top: 0; }
  .card-form.row { flex-direction: column; align-items: stretch; }
  .hero { padding-top: 1.5rem; }
}