/**
 * ============================================
 * BUTTONS COMPONENT CSS
 * Dashboard V3 - Market Analysis
 * ============================================
 */

/* Base Button */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: 1px solid transparent;
    text-decoration: none;
}

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

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

.btn-primary:hover:not(:disabled) {
    background: #2563eb;
    border-color: #2563eb;
}

.btn-primary:active:not(:disabled) {
    transform: translateY(1px);
}

/* Secondary Button */
.btn-secondary {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-border);
}

/* Outline Button */
.btn-outline {
    background: transparent;
    color: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
}

.btn-outline:hover:not(:disabled) {
    background: var(--color-accent-primary);
    color: white;
}

/* Ghost Button */
.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
    border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

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

.btn-success:hover:not(:disabled) {
    background: #059669;
}

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

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
}

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

.btn-lg {
    padding: var(--space-md) var(--space-lg);
    font-size: var(--font-size-base);
}

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

/* Button with Icon Only */
.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--border-radius-sm);
}

.btn-icon.btn-sm {
    width: 28px;
    height: 28px;
}

.btn-icon.btn-lg {
    width: 44px;
    height: 44px;
}

/* Button Group */
.btn-group {
    display: inline-flex;
}

.btn-group .btn {
    border-radius: 0;
}

.btn-group .btn:first-child {
    border-radius: var(--border-radius-sm) 0 0 var(--border-radius-sm);
}

.btn-group .btn:last-child {
    border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
}

.btn-group .btn:not(:last-child) {
    border-right: none;
}

/* Toggle Button */
.btn-toggle {
    position: relative;
    width: 48px;
    height: 24px;
    border-radius: var(--border-radius-full);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    padding: 2px;
}

.btn-toggle::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: white;
    top: 2px;
    left: 2px;
    transition: transform var(--transition-fast);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.btn-toggle.active {
    background: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
}

.btn-toggle.active::after {
    transform: translateX(24px);
}

/* Floating Action Button */
.fab {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-accent-primary);
    color: white;
    font-size: 24px;
    box-shadow: var(--shadow-lg);
    z-index: var(--z-sticky);
}

.fab:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

/* Link Button */
.btn-link {
    background: transparent;
    color: var(--color-accent-primary);
    border: none;
    padding: 0;
    text-decoration: underline;
}

.btn-link:hover {
    color: var(--color-accent-secondary);
}