/* ==================================================
   BUTTONS COMPONENT
   All button styles including variants and states
   ================================================== */

.btn {
    padding: 4px 8px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 0;
    font-size: 0.8rem;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    line-height: 1;
    height: 24px;
    box-sizing: border-box;
}

.btn::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 0;
    width: 3px;
    background-color: rgba(255, 255, 255, 0.9);
    transition: height 0.3s ease;
}

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

.btn:hover:not(:disabled) {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.9);
}

.btn:hover:not(:disabled)::before {
    height: 100%;
}

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

.btn-primary::before {
    background-color: var(--accent-primary);
}

.btn-primary:hover:not(:disabled) {
    background-color: rgba(0, 217, 255, 0.1);
    border-color: var(--accent-hover);
    color: var(--accent-hover);
}

.btn-secondary {
    background: transparent;
    color: rgba(255, 255, 255, 0.6);
}

.btn-secondary:hover:not(:disabled) {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.9);
}

.btn-success {
    background: transparent;
    color: var(--success);
    border-color: var(--success);
}

.btn-success::before {
    background-color: var(--success);
}

.btn-success:hover:not(:disabled) {
    background-color: rgba(16, 185, 129, 0.1);
    border-color: #0d9668;
}

.btn-danger {
    background: transparent;
    color: var(--error);
    border-color: var(--error);
}

.btn-danger::before {
    background-color: var(--error);
}

.btn-danger:hover:not(:disabled) {
    background-color: rgba(239, 68, 68, 0.1);
    border-color: #dc2626;
}

.btn-info {
    background: transparent;
    color: var(--info);
    border-color: var(--info);
}

.btn-info::before {
    background-color: var(--info);
}

.btn-info:hover:not(:disabled) {
    background-color: rgba(0, 217, 255, 0.1);
    border-color: var(--accent-hover);
}

.btn-small {
    padding: 6px 12px;
    font-size: 0.85rem;
}