@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;600;700;900&family=DM+Mono:ital,wght@0,300;0,400;0,500;1,300&display=swap');

/* ── Variables ──────────────────────────────────────────────── */
:root {
  --bg:          #06111f;
  --bg-2:        #0B1A2C;
  --bg-3:        #0d2035;
  --bg-card:     rgba(8, 24, 40, 0.75);
  --text:        #E8F4FF;
  --text-2:      rgba(232, 244, 255, 0.62);
  --text-3:      rgba(232, 244, 255, 0.32);
  --primary:     #18A8FF;
  --primary-dim: rgba(24, 168, 255, 0.15);
  --accent:      #66E4FF;
  --danger:      #ff4d6d;
  --danger-dim:  rgba(255, 77, 109, 0.12);
  --success:     #4ade80;
  --border:      rgba(23, 58, 92, 0.9);
  --border-lit:  rgba(24, 168, 255, 0.28);
  --radius:      12px;
  --radius-lg:   18px;
  --radius-xl:   24px;
  --glow:        0 0 20px rgba(24, 168, 255, 0.18), 0 0 60px rgba(24, 168, 255, 0.06);
  --glow-btn:    0 4px 24px rgba(24, 168, 255, 0.35);
  --shadow:      0 16px 48px rgba(0, 0, 0, 0.4), 0 0 24px rgba(24, 168, 255, 0.06);
  --transition:  all 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --font-brand:  'Orbitron', monospace;
  --font-body:   'DM Mono', monospace;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

/* Grid background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(24, 168, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24, 168, 255, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

/* Central glow */
body::after {
  content: '';
  position: fixed;
  top: 30%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(24, 168, 255, 0.07) 0%, transparent 68%);
  pointer-events: none;
  z-index: 0;
}

/* ── Typography ─────────────────────────────────────────────── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-brand);
  letter-spacing: 0.04em;
  line-height: 1.2;
}

a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
code, pre { font-family: var(--font-body); }

/* ── Layout ─────────────────────────────────────────────────── */
.container { max-width: 960px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
.container-sm { max-width: 560px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
.container-lg { max-width: 1160px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

/* ── Nav ────────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 16px 0;
  background: rgba(6, 17, 31, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.wordmark {
  font-family: var(--font-brand);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 10px;
}

.wordmark .dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--primary); }
  50% { opacity: 0.5; box-shadow: 0 0 16px var(--primary); }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  color: var(--text-2);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: var(--transition);
}

.nav-links a:hover { color: var(--text); }

.nav-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border-lit);
  object-fit: cover;
}

.avatar-placeholder {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary-dim);
  border: 1px solid var(--border-lit);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 500;
}

/* ── Cards ──────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
}

.card:hover {
  border-color: var(--border-lit);
  box-shadow: var(--shadow);
}

.card-glow {
  box-shadow: var(--glow);
  border-color: var(--border-lit);
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  outline: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #18A8FF 0%, #0D7CFF 100%);
  color: #fff;
  box-shadow: var(--glow-btn);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 32px rgba(24, 168, 255, 0.45);
  filter: brightness(1.08);
}

.btn-primary:active { transform: translateY(0); }

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--border-lit);
}

.btn-outline:hover {
  background: var(--primary-dim);
  border-color: var(--primary);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-2);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  color: var(--text);
  border-color: var(--border-lit);
  background: rgba(255,255,255,0.04);
}

.btn-danger {
  background: var(--danger-dim);
  color: var(--danger);
  border: 1px solid rgba(255, 77, 109, 0.3);
}

.btn-danger:hover {
  background: rgba(255, 77, 109, 0.2);
  transform: translateY(-1px);
}

.btn-sm { padding: 7px 16px; font-size: 0.78rem; }
.btn-lg { padding: 14px 32px; font-size: 0.92rem; }
.btn-full { width: 100%; }

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

/* ── Form elements ──────────────────────────────────────────── */
.form-group { margin-bottom: 20px; }

label {
  display: block;
  margin-bottom: 7px;
  font-size: 0.78rem;
  color: var(--text-2);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

input[type="text"],
input[type="email"],
input[type="password"] {
  width: 100%;
  padding: 11px 14px;
  background: rgba(11, 26, 44, 0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.88rem;
  transition: var(--transition);
  outline: none;
}

input:hover { border-color: rgba(24, 168, 255, 0.2); }
input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(24, 168, 255, 0.15);
}

input.input-valid { border-color: var(--success); }
input.input-invalid { border-color: var(--danger); }

.input-hint {
  margin-top: 6px;
  font-size: 0.75rem;
  color: var(--text-3);
  min-height: 18px;
  transition: var(--transition);
}
.input-hint.ok { color: var(--success); }
.input-hint.error { color: var(--danger); }

/* ── Tabs ───────────────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
}

.tab {
  padding: 10px 20px;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-2);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: var(--transition);
  background: none;
  border-left: none;
  border-right: none;
  border-top: none;
  font-family: var(--font-body);
}

.tab:hover { color: var(--text); }
.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* ── Badges ─────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.badge-blue { background: var(--primary-dim); color: var(--primary); border: 1px solid rgba(24, 168, 255, 0.2); }
.badge-green { background: rgba(74, 222, 128, 0.1); color: var(--success); border: 1px solid rgba(74, 222, 128, 0.2); }
.badge-red { background: var(--danger-dim); color: var(--danger); border: 1px solid rgba(255, 77, 109, 0.2); }
.badge-gray { background: rgba(232, 244, 255, 0.05); color: var(--text-2); border: 1px solid var(--border); }

/* ── Alerts ─────────────────────────────────────────────────── */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  line-height: 1.5;
  margin-bottom: 20px;
}

.alert-info { background: var(--primary-dim); border: 1px solid var(--border-lit); color: var(--accent); }
.alert-danger { background: var(--danger-dim); border: 1px solid rgba(255, 77, 109, 0.3); color: var(--danger); }
.alert-success { background: rgba(74, 222, 128, 0.08); border: 1px solid rgba(74, 222, 128, 0.25); color: var(--success); }

/* ── Key display ────────────────────────────────────────────── */
.key-block {
  position: relative;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 44px 14px 14px;
  font-size: 0.78rem;
  word-break: break-all;
  line-height: 1.6;
  color: var(--accent);
  margin-bottom: 12px;
}

.key-block .key-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-3);
  margin-bottom: 4px;
}

.copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 4px 8px;
  font-size: 0.7rem;
  background: var(--primary-dim);
  border: 1px solid var(--border-lit);
  border-radius: 6px;
  color: var(--primary);
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-body);
}
.copy-btn:hover { background: rgba(24, 168, 255, 0.25); }
.copy-btn.copied { color: var(--success); border-color: rgba(74, 222, 128, 0.4); }

/* ── Status indicator ───────────────────────────────────────── */
.status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.status-row:last-child { border-bottom: none; }
.status-key { font-size: 0.8rem; color: var(--text-2); text-transform: uppercase; letter-spacing: 0.06em; }
.status-val { font-size: 0.88rem; color: var(--text); font-weight: 500; }

/* ── Spinner ────────────────────────────────────────────────── */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Utils ──────────────────────────────────────────────────── */
.text-muted { color: var(--text-2); }
.text-dim { color: var(--text-3); }
.text-primary { color: var(--primary); }
.text-accent { color: var(--accent); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-sm { font-size: 0.82rem; }
.text-xs { font-size: 0.72rem; }
.text-center { text-align: center; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mt-8 { margin-top: 32px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.flex { display: flex; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.hidden { display: none !important; }
.section { padding: 64px 0; position: relative; z-index: 1; }
.divider { border: none; border-top: 1px solid var(--border); margin: 28px 0; }

/* Code blocks (docs) */
pre {
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  overflow-x: auto;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--accent);
  margin: 12px 0;
}

pre code { color: inherit; }
.method { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 0.72rem; font-weight: 600; letter-spacing: 0.06em; margin-right: 8px; }
.method-get { background: rgba(74, 222, 128, 0.12); color: #4ade80; }
.method-post { background: var(--primary-dim); color: var(--primary); }
.method-delete { background: var(--danger-dim); color: var(--danger); }

/* Footer */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 32px 0;
  text-align: center;
  color: var(--text-3);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}