.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 11px 24px;
    font-size: 13px;
    font-weight: var(--fw-semibold);
    border-radius: var(--radius-btn);
    transition: background var(--transition), color var(--transition), border-color var(--transition);
    cursor: pointer;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
    border: 2px solid var(--color-accent);
}
.btn-primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
}

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-border);
}
.btn-outline:hover {
    border-color: var(--color-text);
}

.btn-ghost {
    background: transparent;
    color: var(--color-accent);
    border: 2px solid transparent;
    padding-inline: 0;
}
.btn-ghost:hover { opacity: 0.75; }

.btn-sm {
    padding: 7px 16px;
    font-size: 12px;
}

.btn-lg {
    padding: 14px 32px;
    font-size: 15px;
}