.btn {
    border-radius: var(--crypto-radius-md) !important;
    font-weight: 500;
    padding: var(--crypto-spacing-sm) var(--crypto-spacing-lg);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    position: relative;
}

/* Primary Button - Gradient with Glow */
.btn-primary {
    background: var(--crypto-gradient-primary) !important;
    color: white !important;
    box-shadow: var(--crypto-shadow-sm);
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-primary:hover {
    box-shadow: var(--crypto-shadow-md), var(--crypto-glow-accent-md);
    transform: translateY(-1px);
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary:active {
    transform: translateY(0) scale(0.98);
    box-shadow: var(--crypto-shadow-sm);
}

/* Secondary Button - Elevated with Border */
.btn-secondary {
    background: var(--crypto-bg-elevated) !important;
    color: var(--crypto-text-primary) !important;
    border: 1px solid var(--crypto-border-default) !important;
    box-shadow: var(--crypto-shadow-xs);
}

.btn-secondary:hover {
    background: var(--crypto-bg-elevated-hover) !important;
    border-color: var(--crypto-border-emphasis) !important;
    box-shadow: var(--crypto-shadow-sm);
    transform: translateY(-1px);
}

.btn-secondary:active {
    transform: translateY(0) scale(0.98);
}

/* Outline Secondary Button */
.btn-outline-secondary {
    border: 1px solid var(--crypto-border-default) !important;
    color: var(--crypto-text-secondary) !important;
    background: transparent !important;
}

.btn-outline-secondary:hover {
    background: var(--crypto-bg-hover) !important;
    border-color: var(--crypto-border-emphasis) !important;
    color: var(--crypto-text-primary) !important;
    transform: translateY(-1px);
}

.btn-outline-secondary:active {
    transform: translateY(0) scale(0.98);
}

/* Outline Secondary with Danger Text — red at rest, red border + bg on hover */
.btn.btn-outline-secondary.text-danger {
    color: var(--tblr-danger) !important;
}

.btn.btn-outline-secondary.text-danger:hover {
    border-color: var(--tblr-danger) !important;
    background: rgba(var(--tblr-danger-rgb), 0.08) !important;
    color: var(--tblr-danger) !important;
}

/* Ghost Button - Minimal */
.btn-ghost {
    background: transparent !important;
    color: var(--crypto-text-secondary) !important;
    border: 1px solid transparent !important;
}

.btn-ghost:hover {
    color: var(--crypto-text-primary) !important;
    background: var(--crypto-bg-hover) !important;
    border-color: var(--crypto-border-subtle) !important;
}

/* Icon Button */
.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0 !important;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-icon.btn-sm {
    width: 32px;
    height: 32px;
}

.btn-icon.btn-lg {
    width: 48px;
    height: 48px;
}

/* Success Button */
.btn-success {
    background: var(--crypto-gradient-success) !important;
    color: white !important;
    box-shadow: var(--crypto-shadow-sm);
}

.btn-success:hover {
    box-shadow: var(--crypto-shadow-md), var(--crypto-glow-success);
    transform: translateY(-1px);
}

/* Warning Button */
.btn-warning {
    background: var(--crypto-gradient-warning) !important;
    color: white !important;
    box-shadow: var(--crypto-shadow-sm);
}

.btn-warning:hover {
    box-shadow: var(--crypto-shadow-md), var(--crypto-glow-warning);
    transform: translateY(-1px);
}

/* Danger Button */
.btn-danger {
    background: var(--crypto-gradient-danger) !important;
    color: white !important;
    box-shadow: var(--crypto-shadow-sm);
}

.btn-danger:hover {
    box-shadow: var(--crypto-shadow-md), var(--crypto-glow-danger);
    transform: translateY(-1px);
}

/* MICRO-INTERACTIONS */
.btn:active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
}

.btn-primary:active {
    box-shadow: var(--crypto-shadow-sm) !important;
}

.btn-outline-secondary:active {
    transform: scale(0.98);
}

.btn-group {
    box-shadow: none;
}

.btn-group .btn {
    transition: all 0.2s ease;
}

.btn-group .btn.active,
.btn-group .btn:active {
    background: var(--crypto-gradient-primary) !important;
    color: white !important;
    font-weight: 600;
    border-color: transparent !important;
    box-shadow: var(--crypto-shadow-glow);
}

.btn-group .btn:not(.active):hover {
    background: var(--crypto-bg-hover) !important;
    color: var(--crypto-text-primary) !important;
}