:root {
  --bg: #0b1428;
  --surface: #152447;
  --text: #f5f8ff;
  --muted: #afc0e3;
  --accent: #4ae4ff;
  --border: rgb(255 255 255 / 0.14);
  --radius: 1rem;
  --shadow: 0 18px 46px rgb(0 0 0 / 0.3);
  font-family: "Plus Jakarta Sans", "Segoe UI", sans-serif;
}

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

html,
body {
  margin: 0;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 10% 8%, rgb(74 228 255 / 0.14), transparent 36%),
    radial-gradient(circle at 85% 15%, rgb(255 216 107 / 0.12), transparent 30%),
    linear-gradient(160deg, #050915, var(--bg) 52%, #102238);
  color: var(--text);
}

.support-shell {
  width: min(92vw, 62rem);
  margin: 0 auto;
  padding: 1rem 0 2rem;
}

.support-header {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(145deg, #0f1a35, #1d2e56);
  box-shadow: var(--shadow);
  padding: 0.9rem 1.1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.support-header a {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
}

.support-header nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.support-header nav a {
  font-weight: 500;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.support-main {
  margin-top: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(150deg, #101b38, #1a2a4c);
  padding: clamp(1rem, 3vw, 2rem);
  box-shadow: var(--shadow);
}

h1,
h2,
h3 {
  font-family: "Outfit", "Avenir Next", sans-serif;
  margin-top: 0;
}

p,
li {
  color: var(--muted);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.8rem 0 1rem;
  font-size: 0.95rem;
}

th,
td {
  border: 1px solid var(--border);
  padding: 0.55rem 0.65rem;
  text-align: left;
  color: var(--muted);
}

th {
  color: var(--text);
  background: rgb(255 255 255 / 0.06);
}

a {
  color: var(--accent);
}

.diagram {
  margin: 1rem 0;
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1rem;
  display: grid;
  gap: 0.6rem;
  background: rgb(0 0 0 / 0.18);
}

.diagram-step {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  width: fit-content;
  background: rgb(255 255 255 / 0.05);
}

.support-footer {
  margin-top: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
  background: linear-gradient(145deg, #0f1a35, #1d2e56);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.support-footer a {
  color: var(--accent);
}

@media (max-width: 767px) {
  .support-header,
  .support-footer {
    border-radius: 0;
  }

  .support-shell {
    width: 100%;
    padding: 0;
  }

  .support-main {
    border-radius: 0;
    border-left: 0;
    border-right: 0;
  }
}