.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    padding: 0.6rem 1rem;
    cursor: pointer;
    background: var(--color-surface);
    color: var(--color-text);
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
}

.btn-ghost {
    background: transparent;
    border-color: var(--color-border);
}

.btn-ghost:hover {
    background: var(--color-bg);
}

.btn-block {
    width: 100%;
}

.icon-btn {
    border: 0;
    background: transparent;
    padding: 0.4rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--color-text);
}

.icon-btn:hover {
    background: var(--color-bg);
}

.badge {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 0.2rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-info {
    background: var(--color-info-soft);
    color: var(--color-info);
}

.panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-border);
}

.panel-header h2 {
    font-size: 1rem;
}

.panel-body {
    padding: var(--space-5);
}

.alert {
    border-radius: var(--radius-sm);
    padding: 0.85rem 1rem;
    margin-bottom: var(--space-4);
    font-size: 0.9rem;
}

.alert-danger {
    background: var(--color-danger-soft);
    color: var(--color-danger);
    border: 1px solid #fecaca;
}

.muted {
    color: var(--color-muted);
}

.toast-root {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    min-width: 260px;
    max-width: 360px;
    background: #111827;
    color: #fff;
    border-radius: var(--radius-sm);
    padding: 0.85rem 1rem;
    box-shadow: var(--shadow-md);
    font-size: 0.9rem;
}

.toast.is-success { background: #14532d; }
.toast.is-danger { background: #7f1d1d; }
.toast.is-warning { background: #78350f; }

/* Closed by default. Only .is-open shows the overlay (never rely on [hidden] alone). */
#modal-root.modal-root,
.modal-root {
    position: fixed;
    inset: 0;
    background: rgba(17, 24, 39, 0.45);
    display: none !important;
    place-items: center;
    z-index: 1100;
    padding: var(--space-4);
    pointer-events: none;
}

#modal-root.modal-root.is-open,
.modal-root.is-open {
    display: grid !important;
    pointer-events: auto;
}

.modal-card {
    width: min(480px, 100%);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: var(--space-6);
}

.error-body {
    min-height: 100vh;
    display: grid;
    place-items: center;
    background: var(--color-bg);
}

.error-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-8);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.error-card h1 {
    font-size: 2.5rem;
    margin-bottom: var(--space-3);
}

.error-card p {
    color: var(--color-muted);
    margin-bottom: var(--space-5);
}

.toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    align-items: center;
}

.input {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    padding: 0.55rem 0.75rem;
    min-width: 140px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3) var(--space-4);
}

.checkbox-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin: var(--space-3) 0 var(--space-4);
    color: var(--color-muted);
    font-size: 0.9rem;
}

.code-block {
    margin-top: var(--space-4);
    background: #0f172a;
    color: #e2e8f0;
    border-radius: var(--radius-sm);
    padding: var(--space-4);
    overflow: auto;
    font-size: 0.8rem;
}

.nav-ico {
    display: inline-flex;
}

@media (max-width: 720px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}