:root {
  --bg: #0b1220;
  --bg-elev: #121a2b;
  --text: #e8eef7;
  --muted: #93a4bd;
  --line: rgba(232, 238, 247, 0.12);
  --teal: #2dd4bf;
  --teal-deep: #0f766e;
  --danger: #f87171;
  --ok: #4ade80;
  --font: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --max: 1040px;
  --admin-max: 1280px;
  --side: 240px;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  background-color: var(--bg);
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  /* Solid base — layered dark gradients band on many GPUs/displays */
  background-color: var(--bg);
  background-image: none;
  min-height: 100vh;
  line-height: 1.5;
  position: relative;
  isolation: isolate;
}

/* Soft wash on a separate layer (blur + long fade = no banding) */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(
      ellipse 70% 45% at 18% -8%,
      rgba(45, 212, 191, 0.11),
      rgba(45, 212, 191, 0.04) 42%,
      transparent 72%
    ),
    radial-gradient(
      ellipse 55% 40% at 92% 0%,
      rgba(56, 189, 248, 0.07),
      transparent 68%
    );
  filter: blur(28px);
  transform: translateZ(0);
}

a { color: inherit; text-decoration: none; }
.wrap { width: min(var(--max), calc(100% - 36px)); margin: 0 auto; }

.top {
  position: sticky; top: 0; z-index: 30;
  backdrop-filter: blur(12px);
  background: rgba(11, 18, 32, 0.82);
  border-bottom: 1px solid var(--line);
}
.top-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 14px 0;
}
.brand { font-weight: 700; letter-spacing: 0.02em; }
.brand span { color: var(--teal); }
.nav { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; font-size: 0.95rem; }
.nav a:hover { color: var(--teal); }
.nav .muted { color: var(--muted); font-size: 0.85rem; }

main { padding: 36px 0 64px; }
h1 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin: 0 0 8px; letter-spacing: -0.02em; }
h2 { font-size: 1.25rem; margin: 0 0 12px; }
.lead { color: var(--muted); margin: 0 0 28px; max-width: 52ch; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; border: 1px solid var(--line); border-radius: 10px;
  padding: 10px 16px; font-weight: 600; cursor: pointer;
  background: transparent; color: var(--text); font: inherit;
}
.btn:hover { border-color: rgba(45, 212, 191, 0.45); }
.btn-primary { background: linear-gradient(135deg, var(--teal), var(--teal-deep)); border: none; color: #041016; }
.btn-primary:hover { filter: brightness(1.05); }
.btn-danger { border-color: rgba(248, 113, 113, 0.5); color: var(--danger); }
.btn-ghost { background: rgba(255,255,255,0.03); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.card {
  background: rgba(18, 26, 43, 0.85);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
}
.card h3 { margin: 0 0 6px; }
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }
.price { font-size: 1.45rem; font-weight: 700; margin: 14px 0; }
.price small { font-size: 0.85rem; color: var(--muted); font-weight: 500; }
.meta { font-size: 0.85rem; color: var(--muted); margin-bottom: 14px; }

.toolbar {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  margin-bottom: 22px;
}
select, input, textarea {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  padding: 10px 12px;
  font: inherit;
}
/* Native <select> popup is OS-white — force dark text so options stay readable */
select {
  color: #111;
  background: #fff;
}
select option {
  color: #111;
  background: #fff;
}
label { display: block; font-size: 0.85rem; color: var(--muted); margin-bottom: 6px; }
.field { margin-bottom: 14px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 160px; }

table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }
.mono { font-family: ui-monospace, Consolas, monospace; font-size: 0.85rem; word-break: break-all; }

.banner {
  border-radius: 12px; padding: 12px 14px; margin-bottom: 18px;
  border: 1px solid var(--line); background: rgba(45, 212, 191, 0.08);
}
.banner.err { background: rgba(248, 113, 113, 0.1); border-color: rgba(248, 113, 113, 0.35); color: #fecaca; }
.banner.ok { background: rgba(74, 222, 128, 0.1); border-color: rgba(74, 222, 128, 0.35); }
.hidden { display: none !important; }

.auth-box { max-width: 420px; margin: 0 auto; }
.tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.tabs button.active { border-color: var(--teal); color: var(--teal); }

.footer {
  border-top: 1px solid var(--line);
  padding: 22px 0 36px;
  color: var(--muted);
  font-size: 0.9rem;
}
.footer-inner { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

.badge {
  display: inline-block; padding: 2px 8px; border-radius: 999px;
  font-size: 0.75rem; border: 1px solid var(--line); color: var(--muted);
}
.badge.paid { color: var(--ok); border-color: rgba(74,222,128,0.4); }
.badge.pending { color: #fbbf24; border-color: rgba(251,191,36,0.4); }
.badge.failed, .badge.revoked { color: var(--danger); border-color: rgba(248,113,113,0.4); }

.contact-card {
  max-width: 100%;
  border-style: dashed;
  background: rgba(18, 26, 43, 0.55);
}
.contact-card h3 { margin: 0 0 8px; }
.contact-card .btn { margin-top: 12px; }

.lang-wrap { position: relative; }
.lang-btn {
  appearance: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 12px;
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.lang-btn:hover,
.lang-wrap.open .lang-btn {
  border-color: rgba(45, 212, 191, 0.45);
  background: rgba(45, 212, 191, 0.14);
}
.lang-menu {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  min-width: 180px;
  max-height: min(60vh, 360px);
  overflow: auto;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 6px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  z-index: 50;
}
.lang-wrap.open .lang-menu { display: grid; }
.lang-option {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: start;
  padding: 10px 12px;
  border-radius: 10px;
  font: inherit;
  cursor: pointer;
}
.lang-option:hover,
.lang-option.active {
  background: rgba(45, 212, 191, 0.14);
  color: var(--teal);
}

/* Custom currency picker — avoid native OS select (blue/white popup) */
.cur-picker {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.cur-picker button {
  appearance: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 14px;
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
}
.cur-picker button:hover {
  border-color: rgba(45, 212, 191, 0.4);
}
.cur-picker button.active {
  border-color: rgba(45, 212, 191, 0.65);
  background: rgba(45, 212, 191, 0.16);
  color: var(--teal);
  font-weight: 600;
}

@media (max-width: 640px) {
  .nav a.hide-sm { display: none; }
}

/* ── Admin shell ─────────────────────────────────────────── */
body.admin-body { background-color: #080e18; }
body.admin-body::before {
  background:
    radial-gradient(ellipse 50% 40% at 0% 0%, rgba(45, 212, 191, 0.08), transparent 70%),
    radial-gradient(ellipse 40% 35% at 100% 0%, rgba(99, 102, 241, 0.08), transparent 65%);
  filter: blur(40px);
}

.admin-shell {
  display: grid;
  grid-template-columns: var(--side) 1fr;
  min-height: 100vh;
}

.admin-side {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 20px 14px;
  border-right: 1px solid var(--line);
  background: rgba(10, 16, 28, 0.92);
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow: auto;
}

.admin-side .brand {
  padding: 6px 12px 18px;
  font-size: 1.05rem;
}
.admin-side .side-label {
  margin: 14px 12px 6px;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.admin-side a.side-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--muted);
  font-size: 0.95rem;
}
.admin-side a.side-link:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}
.admin-side a.side-link.active {
  background: rgba(45, 212, 191, 0.12);
  color: var(--teal);
  font-weight: 600;
}
.admin-side .side-foot {
  margin-top: auto;
  padding: 12px;
  font-size: 0.8rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.admin-main {
  padding: 28px 32px 56px;
  width: min(var(--admin-max), 100%);
}
.admin-main h1 { margin-bottom: 4px; }
.admin-main .lead { margin-bottom: 22px; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 22px;
}
.stat {
  background: rgba(18, 26, 43, 0.9);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}
.stat .n {
  font-size: 1.7rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--teal);
}
.stat .l { color: var(--muted); font-size: 0.85rem; margin-top: 4px; }

.admin-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.admin-toolbar .left, .admin-toolbar .right {
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
}

.integ-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 14px;
}
.integ-card .status-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: 6px;
  background: var(--muted);
}
.integ-card .status-dot.ok,
.integ-card .status-dot.configured { background: var(--ok); }
.integ-card .status-dot.demo { background: #fbbf24; }
.integ-card .status-dot.error { background: var(--danger); }
.integ-card .status-dot.planned { background: #64748b; }
.integ-card .mono-sm {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.78rem;
  word-break: break-all;
  color: var(--muted);
}
.integ-form { margin-top: 12px; }
.integ-field { margin-bottom: 10px; }
.integ-field input,
.integ-field select {
  width: 100%;
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.85rem;
}
.integ-field select {
  color: #111;
  background: #fff;
}
.integ-field select option {
  color: #111;
  background: #fff;
}
.integ-clear {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  font-size: 0.8rem;
  color: var(--muted);
  cursor: pointer;
}
.integ-clear input { width: auto; }
.integ-actions { margin-top: 12px; }

@media (max-width: 900px) {
  .admin-shell { grid-template-columns: 1fr; }
  .admin-side {
    position: relative;
    height: auto;
    flex-direction: row;
    flex-wrap: wrap;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .admin-side .side-foot { display: none; }
  .admin-side .side-label { display: none; }
  .admin-main { padding: 20px 16px 48px; }
}