/* Button Styles */

/* Base Button - White with gray text by default */
.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-bg);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    font-size: var(--font-sm);
    font-weight: var(--font-semibold);
    cursor: pointer;
    transition: var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    white-space: nowrap;
    text-decoration: none;
    line-height: 1;
}

.btn:hover:not(:disabled) {
    background: var(--color-bg-secondary);
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px var(--color-primary-light);
}

.btn:active:not(:disabled) {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Primary Button - Blue background */
.btn-primary {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Secondary Button - same as default */
.btn-secondary {
    background: var(--color-bg);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-light);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-bg-secondary);
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px var(--color-primary-light);
}

/* Success Button */
.btn-success {
    background: var(--color-success);
    color: white;
    border-color: var(--color-success);
}

.btn-success:hover:not(:disabled) {
    background: var(--color-success-hover);
    border-color: var(--color-success-hover);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Danger Button */
.btn-danger {
    background: var(--color-danger);
    color: white;
    border-color: var(--color-danger);
}

.btn-danger:hover:not(:disabled) {
    background: var(--color-danger-hover);
    border-color: var(--color-danger-hover);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Ghost/Text Button */
.btn-ghost,
.btn-text {
    background: transparent;
    color: var(--color-text-muted);
    border: none;
    box-shadow: none;
}

.btn-ghost:hover:not(:disabled),
.btn-text:hover:not(:disabled) {
    color: var(--color-text-secondary);
    background: var(--color-bg-secondary);
    transform: none;
}

/* Icon Button */
.btn-icon,
.panel-toggle,
.preview-close,
.modal-close {
    padding: var(--spacing-sm);
    width: var(--button-md);
    height: var(--button-md);
    justify-content: center;
    background: var(--color-bg-secondary);
    color: var(--color-text-muted);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    transition: var(--transition-base);
    line-height: 1;
    box-shadow: none;
}

.btn-icon:hover:not(:disabled),
.panel-toggle:hover,
.preview-close:hover,
.modal-close:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-primary);
    transform: none;
}

/* Close Button */
.btn-close {
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
    line-height: 1;
    box-shadow: none;
}

.btn-close:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
    transform: rotate(90deg);
}

/* Button Sizes */
.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-sm);
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: var(--font-base);
}

/* Full Width Button */
.btn-block {
    width: 100%;
    justify-content: center;
}