/* ============================================================
   BUTTONS.CSS — Przyciski CTA
   Warianty: primary, outline, ghost
   Rozmiary: default, sm, lg, full
   ============================================================ */

/* --- Baza --- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    line-height: 1;
    border-radius: var(--radius-base);
    border: 2px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    transition:
        background-color var(--transition-fast),
        color var(--transition-fast),
        border-color var(--transition-fast),
        box-shadow var(--transition-fast),
        transform var(--transition-fast);
    text-decoration: none;
}

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

/* --- Primary (główny CTA) --- */

.btn--primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.btn--primary:hover {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.35);
}

/* --- Outline --- */

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

.btn--outline:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

/* --- Outline white (na ciemnym tle) --- */

.btn--outline-white {
    background-color: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn--outline-white:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.7);
}

/* --- Ghost --- */

.btn--ghost {
    background-color: transparent;
    color: var(--color-slate-700);
    border-color: transparent;
}

.btn--ghost:hover {
    background-color: var(--color-slate-100);
    color: var(--color-slate-950);
}

/* --- Rozmiary --- */

.btn--sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
    border-radius: var(--radius-sm);
}

.btn--lg {
    padding: var(--space-4) var(--space-10);
    font-size: var(--text-base);
    border-radius: var(--radius-lg);
}

.btn--full {
    width: 100%;
}

/* --- Z ikoną strzałki --- */

.btn--arrow::after {
    content: '→';
    transition: transform var(--transition-fast);
}

.btn--arrow:hover::after {
    transform: translateX(4px);
}