/* ===========================
   Buttons — two types only
   =========================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1.375rem 0.75rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
    transition: background 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
    -webkit-font-smoothing: antialiased;
}

/* Gradient bg, white text — for light backgrounds */
.btn-primary {
    background: var(--gradient-accent);
    color: var(--color-white);
}
.btn-primary:hover {
    background: var(--gradient-accent-hover);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

/* White bg, black text — for dark backgrounds */
.btn-white {
    background: var(--color-white);
    color: var(--color-dark);
}
.btn-white:hover {
    background: var(--color-bg);
    color: var(--color-dark);
    box-shadow: var(--shadow-md);
}

/* White outline — for dark backgrounds (secondary action) */
.btn-outline-white {
    background: transparent;
    color: var(--color-white);
    border: 1.5px solid var(--color-white-dim);
}
.btn-outline-white:hover {
    background: var(--color-white-faint);
    border-color: var(--color-white);
    color: var(--color-white);
}

/* ===========================
   Sizes
   =========================== */

.btn-sm {
    padding: 0.4rem 0.875rem;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 0.875rem 2rem;
    font-size: 1.0625rem;
    border-radius: var(--radius-lg);
}