/**
 * Button Component
 * Two standardized button styles: Primary (red) and Secondary (outline)
 */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-8);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    letter-spacing: var(--tracking-normal);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    border: 2px solid transparent;
}

.btn:focus-visible {
    outline: 2px solid var(--color-brand);
    outline-offset: 2px;
}

/* ===========================================
   Primary Button - Solid red (brand color)
   =========================================== */

.btn-primary {
    background-color: var(--color-brand);
    color: var(--text-inverse);
    border-color: var(--color-brand);
}

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

.btn-primary:active {
    background-color: var(--color-brand-hover);
    border-color: var(--color-brand-hover);
}

/* ===========================================
   Secondary Button - Outline style
   =========================================== */

.btn-secondary,
.btn-outline {
    background-color: transparent;
    color: var(--text-primary);
    border-color: var(--color-gray-300);
}

.btn-secondary:hover,
.btn-outline:hover {
    background-color: var(--color-gray-100);
    border-color: var(--color-gray-400);
}

.btn-secondary:active,
.btn-outline:active {
    background-color: var(--color-gray-200);
}

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

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

.btn-large {
    padding: var(--space-5) var(--space-10);
    font-size: var(--text-base);
}

/* ===========================================
   Button States
   =========================================== */

.btn:disabled,
.btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Full width button */
.btn-block {
    width: 100%;
}

/* ===========================================
   Button with Icon
   =========================================== */

.btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.btn-icon-only {
    padding: var(--space-3);
    border-radius: var(--radius-full);
}

.btn-icon-only svg {
    width: 20px;
    height: 20px;
}

/* ===========================================
   Dark Background Variants
   =========================================== */

.bg-dark .btn-secondary,
.bg-black .btn-secondary {
    color: var(--text-inverse);
    border-color: rgba(255, 255, 255, 0.4);
}

.bg-dark .btn-secondary:hover,
.bg-black .btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
}

/* ===========================================
   Responsive
   =========================================== */

@media (max-width: 768px) {
    .btn {
        border-width: 1px;
    }
}