/* ============================================================
   Design tokens
   ============================================================ */
:root {
  --white: #ffffff;
  --light: #f8fafc;
  --light-gray: #e2e8f0;
  --medium-gray: #94a3b8;
  --dark-gray: #64748b;
  --black: #0f172a;
  --blue: #3b82f6;
  --blue-light: #dbeafe;
  --blue-medium: #3b82f6;
  --blue-dark: #1e40af;
  --ice: #dbeafe;
  --teal: #3b82f6;
  --navy: #1e3a5f;

  --bg: var(--light);
  --surface: var(--white);
  --surface-raised: var(--blue-light);
  --border: var(--light-gray);
  --border-strong: var(--medium-gray);
  --text: var(--black);
  --text-muted: var(--dark-gray);
  --accent: var(--blue);
  --accent-strong: var(--blue-dark);
  --accent-glow: 59, 130, 246;
  --on-accent: var(--white);
  --link: var(--blue-dark);
  --success: #16a34a;
  --danger: #dc2626;

  --font-display: 'Space Grotesk', 'IBM Plex Sans', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); }
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ============================================================
   Header / nav
   ============================================================ */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 20px 24px;
}

.site-header__inner {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--navy);
  text-decoration: none;
}

.brand-logo {
  height: 28px;
  width: auto;
  display: block;
}

.logout-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13.5px;
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 7px 12px;
}

.logout-link:hover {
  color: var(--text);
  border-color: var(--border-strong);
}

.beacon {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(var(--accent-glow), 0.6);
  animation: pulse 2.4s ease-out infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(var(--accent-glow), 0.55); }
  70%  { box-shadow: 0 0 0 10px rgba(var(--accent-glow), 0); }
  100% { box-shadow: 0 0 0 0 rgba(var(--accent-glow), 0); }
}

.site-nav {
  display: flex;
  gap: 4px;
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 3px;
}

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  padding: 7px 14px;
  border-radius: 6px;
}

.site-nav a.is-active {
  background: var(--surface-raised);
  color: var(--accent-strong);
}

/* ============================================================
   Page shell
   ============================================================ */
main {
  max-width: 560px;
  margin: 0 auto;
  padding: 56px 24px 96px;
}

main.main--narrow {
  max-width: 420px;
}

.eyebrow-code {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-strong);
  letter-spacing: 0.02em;
}

h1 {
  font-family: var(--font-display);
  font-size: 32px;
  line-height: 1.2;
  margin: 10px 0 8px;
  font-weight: 600;
  color: var(--navy);
}

.lede {
  color: var(--text-muted);
  font-size: 15.5px;
  max-width: 46ch;
  margin: 0 0 36px;
}

/* ============================================================
   Forms
   ============================================================ */
.card-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.field {
  margin-bottom: 20px;
}

.field:last-of-type {
  margin-bottom: 0;
}

.field label {
  display: block;
  font-size: 13.5px;
  color: var(--text-muted);
  margin-bottom: 7px;
}

.field .hint {
  display: block;
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 6px;
  opacity: 0.85;
}

input[type="text"],
input[type="url"],
input[type="password"] {
  width: 100%;
  background: var(--light);
  border: 1px solid var(--border-strong);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 14.5px;
  padding: 11px 13px;
  border-radius: 7px;
  transition: border-color 0.15s ease, background 0.15s ease;
}

input[type="text"]:focus,
input[type="url"]:focus,
input[type="password"]:focus {
  border-color: var(--accent);
  background: var(--white);
}

input::placeholder { color: var(--medium-gray); }

.field-row {
  display: flex;
  gap: 8px;
}

.field-row input {
  flex: 1;
  min-width: 0;
}

.gen-btn {
  background: var(--white);
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  padding: 0 14px;
  border-radius: 7px;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.gen-btn:hover { color: var(--accent-strong); border-color: var(--accent); }

.actions {
  margin-top: 28px;
  display: flex;
  align-items: center;
  gap: 14px;
}

button.primary {
  background: var(--accent);
  color: var(--on-accent);
  border: none;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14.5px;
  padding: 12px 22px;
  border-radius: 7px;
  cursor: pointer;
  transition: background 0.15s ease;
}

button.primary:hover { background: var(--accent-strong); }
button.primary:disabled { opacity: 0.55; cursor: not-allowed; }

.spinner {
  width: 15px;
  height: 15px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: var(--white);
  border-radius: 50%;
  display: none;
  animation: spin 0.7s linear infinite;
}

button.primary[data-loading="true"] .spinner { display: inline-block; }
button.primary[data-loading="true"] .btn-label { opacity: 0.85; }

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

/* ============================================================
   Result / status panels
   ============================================================ */
.result {
  margin-top: 24px;
  border-radius: 12px;
  padding: 22px;
  display: none;
}

.result.is-visible { display: block; }

.result--success {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
}

.result--error {
  background: #fef2f2;
  border: 1px solid #fecaca;
}

.result h2 {
  font-family: var(--font-display);
  font-size: 16px;
  margin: 0 0 6px;
}

.result--success h2 { color: var(--success); }
.result--error h2 { color: var(--danger); }

.result p {
  margin: 0;
  font-size: 14px;
  color: var(--text-muted);
}

.proxy-url-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 10px 12px;
}

.proxy-url-row a {
  flex: 1;
  min-width: 0;
  text-decoration: none;
}

.proxy-url-row a:hover code { color: var(--accent-strong); }

.proxy-url-row code {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--text);
  overflow-x: auto;
  white-space: nowrap;
  flex: 1;
  display: block;
}

#qr-link {
  display: inline-block;
  cursor: pointer;
}

.copy-btn {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  flex-shrink: 0;
}

.copy-btn:hover { color: var(--accent-strong); border-color: var(--accent); }

#qr-holder {
  margin-top: 18px;
  background: var(--white);
  border: 1px solid var(--border);
  padding: 14px;
  border-radius: 8px;
  display: inline-block;
  line-height: 0;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 12.5px;
  padding: 32px 24px 48px;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 480px) {
  .site-header__inner { flex-wrap: wrap; }
  h1 { font-size: 26px; }
  .card-form { padding: 20px; }
  .actions { flex-wrap: wrap; }
}