/* ── Cards ───────────────────────────────────────────────────── */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}
.card-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-weight: 800;
}

/* Interactive card — hover effects */
.card-interactive {
  cursor: default;
}
.card-interactive:hover {
  border-color: var(--brand);
  box-shadow: 0 0 0 1px var(--brand-10), var(--shadow-sm);
  transform: translateY(-1px);
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
/* Gradient accent line slides in on hover */
.stat-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--brand) 0%, #8B7EF0 100%);
  opacity: 0;
  transition: opacity 0.25s;
}
.stat-card:hover {
  border-color: var(--brand);
  box-shadow: 0 0 0 1px var(--brand-10), var(--shadow-sm);
  transform: translateY(-2px);
}
.stat-card:hover::after { opacity: 1; }

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.stat-value {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text);
  margin-top: 0.4rem;
  letter-spacing: -0.025em;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-weight: 800;
}
.stat-sub { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.15rem; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }

/* ── Buttons ─────────────────────────────────────────────────── */

.btn {
  display: inline-flex; align-items: center; gap: 0.45rem;
  padding: 0.5rem 1rem;
  border: 1px solid transparent;
  border-radius: 7px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, box-shadow 0.15s, transform 0.1s, opacity 0.15s;
  text-decoration: none;
  white-space: nowrap;
  font-family: "IBM Plex Sans", sans-serif;
  letter-spacing: -0.01em;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; box-shadow: none !important; }

.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.btn-primary:hover {
  background: var(--brand-hover);
  color: #fff;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(94,106,210,0.38);
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); box-shadow: 0 1px 3px rgba(0,0,0,0.2); }

.btn-secondary {
  background: var(--surface-2);
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover {
  background: var(--border);
  color: var(--text);
  text-decoration: none;
  box-shadow: var(--shadow-xs);
}

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover {
  opacity: 0.88;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(235,87,87,0.32);
  transform: translateY(-1px);
}

.btn-ghost { background: transparent; color: var(--text-muted); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); text-decoration: none; }

.btn-sm { padding: 0.3rem 0.7rem; font-size: 0.8rem; border-radius: 6px; }
.btn-icon { padding: 0.4rem; border-radius: 6px; }
.btn-lg { font-size: 1rem; padding: 0.65rem 1.75rem; border-radius: 8px; }

/* ── Forms ───────────────────────────────────────────────────── */

.form-group { margin-bottom: 1rem; }
.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.4rem;
  letter-spacing: -0.01em;
}
.form-hint { font-size: 0.78rem; color: var(--text-muted); margin-top: 0.25rem; }

.form-input, .form-select, .form-textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 0.55rem 0.8rem;
  font-size: 0.875rem;
  color: var(--text);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  font-family: "IBM Plex Sans", inherit;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-15);
}
.form-input::placeholder { color: var(--text-muted); opacity: 0.65; }
.form-select { cursor: pointer; }
.form-textarea { min-height: 120px; resize: vertical; }
.form-checkbox { display: flex; align-items: center; gap: 0.5rem; }
.form-checkbox input { width: 16px; height: 16px; cursor: pointer; accent-color: var(--brand); }

.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }

/* ── Tables ──────────────────────────────────────────────────── */

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 10px; }
table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
thead { background: var(--surface-2); }
th {
  padding: 0.65rem 1rem;
  text-align: left;
  font-weight: 700;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  white-space: nowrap;
}
td {
  padding: 0.8rem 1rem;
  border-top: 1px solid var(--border);
  color: var(--text);
  vertical-align: middle;
}
tr:hover td { background: var(--brand-10); transition: background 0.12s; }
.td-muted { color: var(--text-muted); font-size: 0.82rem; }
.td-mono { font-family: "JetBrains Mono", monospace; font-size: 0.8rem; }

/* ── Provider chips ──────────────────────────────────────────── */

.chip {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.chip-default            { background: var(--surface-2); color: var(--text-muted); }
.chip-anthropic { background: var(--chip-anthropic-bg); color: var(--chip-anthropic-fg); }
.chip-openai    { background: var(--chip-openai-bg);    color: var(--chip-openai-fg); }
.chip-google    { background: var(--chip-google-bg);    color: var(--chip-google-fg); }
.chip-z         { background: var(--chip-z-bg);         color: var(--chip-z-fg); }
.chip-kimi      { background: var(--chip-kimi-bg);      color: var(--chip-kimi-fg); }
.chip-minimax            { background: var(--chip-minimax-bg);            color: var(--chip-minimax-fg); }
.chip-self_hosted        { background: var(--chip-self_hosted-bg);        color: var(--chip-self_hosted-fg); }
.chip-openai_compatible  { background: var(--chip-openai_compatible-bg);  color: var(--chip-openai_compatible-fg); }
.chip-deepseek           { background: var(--chip-deepseek-bg);           color: var(--chip-deepseek-fg); }
.chip-grok               { background: var(--chip-grok-bg);               color: var(--chip-grok-fg); }
.chip-success            { background: var(--success-15);                 color: var(--success); }

/* ── Badges ──────────────────────────────────────────────────── */

.badge {
  display: inline-flex; align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.badge-success { background: var(--success-15); color: var(--success); }
.badge-warning { background: var(--warning-15); color: var(--warning); }
.badge-danger  { background: var(--danger-15);  color: var(--danger); }
.badge-muted   { background: var(--surface-2); color: var(--text-muted); }