:root {
  --bg: #020617;
  --bg-elevated: #02081a;
  --card: #020617;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #4f46e5;
  --border: #1f2937;
  --danger: #ef4444;
}

html[data-theme="light"] {
  --bg: #f3f4f6;
  --bg-elevated: #ffffff;
  --card: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --accent: #4f46e5;
  --border: #e5e7eb;
  --danger: #b91c1c;
}

/* global layout */
html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background-color: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* top nav */
.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background-color: #020617;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}

html[data-theme="light"] .top-nav {
  background-color: #111827;
  color: #f9fafb;
}

.top-nav-left {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.logo {
  font-size: 1.05rem;
}

.top-nav-menu {
  display: flex;
  gap: 1rem;
  font-size: 0.94rem;
}

.top-nav-menu a {
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  text-decoration: none;
}
.top-nav-menu a:hover {
  background-color: rgba(148, 163, 184, 0.15);
}
.top-nav-menu a.active {
  background-color: var(--accent);
  color: #fff;
}

.top-nav-right {
  display: flex;
  align-items: center;
}

.theme-toggle {
  border-radius: 999px !important;
}

/* main content wrapper */
.content {
  max-width: 1160px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

/* cards & sections */
.settings-card,
.card {
  background-color: var(--card);
  color: var(--text);
  border-radius: 0.9rem;
  border: 1px solid var(--border);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
}

.settings-card h2 {
  font-size: 1.15rem;
  margin-bottom: 0.25rem;
}
.settings-card .text-muted {
  color: var(--muted) !important;
}

/* tabs */
.settings-tabs .nav-link {
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  font-size: 0.9rem;
  border: 1px solid transparent;
}
.settings-tabs .nav-link.active {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* forms */
.form-label {
  font-weight: 600;
  font-size: 0.9rem;
}

.form-text {
  font-size: 0.8rem;
  color: var(--muted) !important;
}

.form-control,
.form-select,
.form-check-input {
  background-color: var(--bg-elevated);
  color: var(--text);
  border-color: var(--border);
}
.form-control:focus,
.form-select:focus {
  background-color: var(--bg-elevated);
  color: var(--text);
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(79, 70, 229, 0.4);
}

html[data-theme="light"] .form-control,
html[data-theme="light"] .form-select {
  background-color: #ffffff;
}

/* save button row */
.settings-actions {
  border-top: 1px solid var(--border);
  padding-top: 1rem;
  margin-top: 2rem;
}

/* small helpers */
.badge-soft {
  border-radius: 999px;
  padding: 0.1rem 0.55rem;
  font-size: 0.7rem;
  border: 1px solid var(--border);
  color: var(--muted);
}

.text-danger-soft {
  color: var(--danger);
}