:root {
  --bg: #0c0c0c;
  --bg-elevated: #161616;
  --bg-input: #0a0a0a;
  --bg-hover: #1c1c1c;
  --border: #2a2a2a;
  --border-strong: #3d3d3d;
  --fg: #f0f0f0;
  --fg-muted: #a8a8a8;
  --fg-subtle: #6b6b6b;
  --accent: #ff6b35;
  --accent-hover: #ff7d4d;
  --accent-glow: rgba(255, 107, 53, 0.18);
  --error: #ff5f5f;
  --success: #66dd66;

  --radius: 8px;
  --radius-lg: 12px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, system-ui, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Monaco, Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background:
    radial-gradient(ellipse 900px 600px at 50% -15%, rgba(255, 107, 53, 0.10), transparent 55%),
    var(--bg);
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.15s;
}
a:hover { opacity: 0.85; }

.container {
  max-width: 540px;
  width: 100%;
  margin: auto;
}

/* Top nav */
header.topnav {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto 4rem;
  padding: 0 0.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header.topnav .logo {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
}

header.topnav nav {
  display: flex;
  gap: 1.5rem;
  font-size: 0.9rem;
  align-items: center;
}

header.topnav nav a {
  color: var(--fg-muted);
}
header.topnav nav a:hover {
  color: var(--fg);
  opacity: 1;
}

/* Discord icon button — square, branded color, used in top nav */
.btn-discord {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #5865F2;
  color: white !important;
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  transition: background 0.15s, transform 0.05s;
  flex-shrink: 0;
}
.btn-discord:hover {
  background: #4752C4;
  opacity: 1 !important;
}
.btn-discord:active {
  transform: translateY(1px);
}
.btn-discord svg {
  width: 20px;
  height: 20px;
  fill: white;
  display: block;
}

/* Brand logo (large, on landing) */
.logo {
  font-family: var(--font-mono);
  font-size: 2.75rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  margin-bottom: 0.5rem;
  line-height: 1;
}
.logo .x { color: var(--accent); }

.tagline {
  color: var(--fg-muted);
  font-size: 0.95rem;
  margin-bottom: 3.5rem;
  letter-spacing: 0.01em;
}

/* Typography */
h1 {
  font-size: 2.1rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 1.25rem;
  color: var(--fg);
}

h2 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 0.75rem;
  color: var(--fg);
}

p.lead {
  color: var(--fg);
  margin-bottom: 2rem;
  font-size: 1.05rem;
  line-height: 1.65;
}

p.subtle {
  color: var(--fg-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
  line-height: 1.6;
}

/* Form fields */
label {
  display: block;
  color: var(--fg-muted);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  letter-spacing: 0.01em;
}

input[type="email"],
input[type="password"],
input[type="text"] {
  width: 100%;
  padding: 0.8rem 0.95rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--fg);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

input::placeholder { color: var(--fg-subtle); }

.field { margin-bottom: 1.25rem; }

/* Buttons */
button {
  padding: 0.8rem 1.5rem;
  background: var(--accent);
  color: #0a0a0a;
  border: none;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.05s;
  letter-spacing: 0.01em;
}

button:hover:not(:disabled) { background: var(--accent-hover); }
button:active:not(:disabled) { transform: translateY(1px); }
button:disabled { opacity: 0.55; cursor: not-allowed; }
button.full { width: 100%; }

button.secondary {
  background: transparent;
  color: var(--fg-muted);
  border: 1px solid var(--border);
}
button.secondary:hover:not(:disabled) {
  background: var(--bg-hover);
  color: var(--fg);
  border-color: var(--border-strong);
}

.form-msg {
  font-size: 0.85rem;
  min-height: 1.25rem;
  margin-top: 0.85rem;
  line-height: 1.5;
}
.form-msg.error { color: var(--error); }
.form-msg.success { color: var(--success); }

form.inline {
  display: flex;
  gap: 0.5rem;
}
form.inline input { flex: 1; }

/* Cards (auth, feature blocks) */
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.04) inset,
    0 8px 30px rgba(0, 0, 0, 0.45);
}

.muted-link {
  color: var(--fg-muted);
  font-size: 0.85rem;
  margin-top: 1.5rem;
  text-align: center;
}

/* Feature grid (landing) */
.features {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
  margin: 3rem 0;
}

.feature {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
  transition: border-color 0.15s, transform 0.15s;
}

.feature:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.feature-tag {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.78rem;
  margin-bottom: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.feature h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--fg);
}

.feature p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.55;
}

/* Footer */
footer {
  margin-top: 5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--fg-subtle);
  font-size: 0.8rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.row-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
}

@media (max-width: 480px) {
  body { padding: 1rem; }
  header.topnav { margin-bottom: 2.5rem; }
  form.inline { flex-direction: column; }
  .logo { font-size: 2.25rem; }
  h1 { font-size: 1.65rem; }
  .card { padding: 1.5rem; }
  .feature { padding: 1.1rem 1.25rem; }
}