.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    min-height: 42px;
    padding: 0.55rem 1rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 600;
    font-size: 0.95rem;
    transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), opacity var(--transition);
}

.btn[hidden],
[hidden] {
    display: none !important;
}

.btn:active {
    transform: translateY(1px);
}

.btn:disabled,
.btn.is-loading {
    opacity: 0.6;
    pointer-events: none;
}

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

.btn-primary:hover {
    background: #0f3d22;
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-primary-light);
}

.btn-ghost {
    color: var(--color-text-muted);
}

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

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

.btn-danger:hover {
    filter: brightness(0.92);
}

.btn-block {
    width: 100%;
}

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

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.7rem;
    border-radius: 999px;
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    font-size: 0.78rem;
    font-weight: 650;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.field label {
    font-size: 0.86rem;
    font-weight: 600;
}

.field input {
    min-height: 46px;
    padding: 0.7rem 0.9rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.field input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-primary) 16%, transparent);
}

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

.alert {
    padding: 0.8rem 0.95rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
}

.alert-error {
    background: #FEF2F2;
    color: var(--color-danger);
}

.alert-success {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
}

.alert[hidden] {
    display: none;
}

.skeleton {
    background: linear-gradient(90deg, #edf2ef 25%, #f7faf8 37%, #edf2ef 63%);
    background-size: 400% 100%;
    animation: shimmer 1.4s ease infinite;
    border-radius: var(--radius-sm);
}

@keyframes shimmer {
    0% { background-position: 100% 0; }
    100% { background-position: 0 0; }
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    line-height: 1.15;
    letter-spacing: -0.03em;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-primary);
}